{"id":610,"date":"2023-07-03T15:48:53","date_gmt":"2023-07-03T12:48:53","guid":{"rendered":"https:\/\/bagrut-ru.com\/?p=610"},"modified":"2025-09-04T17:43:41","modified_gmt":"2025-09-04T14:43:41","slug":"%d0%b1%d0%b0%d0%b3%d1%80%d1%83%d1%82-5-%d0%bb%d0%b5%d1%82%d0%be-2023-%d0%b2%d0%b0%d1%80%d0%b8%d0%b0%d0%bd%d1%82-35571-%d0%b7%d0%b0%d0%b4%d0%b0%d0%bd%d0%b8%d0%b5-8","status":"publish","type":"post","link":"https:\/\/bagrut-ru.com\/?p=610","title":{"rendered":"\u0411\u0410\u0413\u0420\u0423\u0422 (5). \u041b\u0415\u0422\u041e 2023, \u0412\u0410\u0420\u0418\u0410\u041d\u0422 35571, \u0417\u0410\u0414\u0410\u041d\u0418\u0415 8"},"content":{"rendered":"\n<figure class=\"wp-block-gallery has-nested-images columns-default is-cropped wp-block-gallery-1 is-layout-flex wp-block-gallery-is-layout-flex\">\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"728\" height=\"294\" data-id=\"611\" src=\"https:\/\/bagrut-ru.com\/wp-content\/uploads\/2023\/07\/44.png\" alt=\"\" class=\"wp-image-611\" srcset=\"https:\/\/bagrut-ru.com\/wp-content\/uploads\/2023\/07\/44.png 728w, https:\/\/bagrut-ru.com\/wp-content\/uploads\/2023\/07\/44-300x121.png 300w\" sizes=\"auto, (max-width: 728px) 100vw, 728px\" \/><\/figure>\n<\/figure>\n\n\n\n<figure class=\"wp-block-gallery has-nested-images columns-default is-cropped wp-block-gallery-2 is-layout-flex wp-block-gallery-is-layout-flex\">\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"876\" height=\"326\" data-id=\"612\" src=\"https:\/\/bagrut-ru.com\/wp-content\/uploads\/2023\/07\/45.png\" alt=\"\" class=\"wp-image-612\" srcset=\"https:\/\/bagrut-ru.com\/wp-content\/uploads\/2023\/07\/45.png 876w, https:\/\/bagrut-ru.com\/wp-content\/uploads\/2023\/07\/45-300x112.png 300w, https:\/\/bagrut-ru.com\/wp-content\/uploads\/2023\/07\/45-768x286.png 768w\" sizes=\"auto, (max-width: 876px) 100vw, 876px\" \/><\/figure>\n<\/figure>\n\n\n\n<p class=\"wp-block-paragraph\"><a href=\"https:\/\/meyda.education.gov.il\/sheeloney_bagrut\/2023\/1\/RUS\/35571.pdf\" data-type=\"link\" data-id=\"https:\/\/meyda.education.gov.il\/sheeloney_bagrut\/2023\/1\/RUS\/35571.pdf\">\u0438\u0441\u0442\u043e\u0447\u043d\u0438\u043a<\/a><\/p>\n\n\n\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-8f761849 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<p class=\"wp-block-paragraph\"><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-vivid-red-color\"><strong>(\u05d0)<\/strong><\/mark> \u041f\u0443\u0441\u0442\u044c \u0434\u043b\u0438\u043d\u0430 \u043a\u0430\u0436\u0434\u043e\u0439 \u0441\u0442\u043e\u0440\u043e\u043d\u044b \u0440\u043e\u043c\u0431\u0430 \\(ABCD\\) \u0440\u0430\u0432\u043d\u0430 \\(2a\\). \u0422\u0430\u043a \u043a\u0430\u043a \u043f\u043e \u0443\u0441\u043b\u043e\u0432\u0438\u044e \\(E\\) &#8212; \u0441\u0435\u0440\u0435\u0434\u0438\u043d\u0430 \u0441\u0442\u043e\u0440\u043e\u043d\u044b \\(BC\\), \\(EC=a\\)<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\\(\\measuredangle ECD=x\\). <\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u041f\u043b\u043e\u0449\u0430\u0434\u044c \u0442\u0440\u0435\u0443\u0433\u043e\u043b\u044c\u043d\u0438\u043a\u0430 \\(ECD\\) \u0440\u0430\u0432\u043d\u0430 18. <\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u041d\u0430\u043d\u0435\u0441\u0435\u043c \u044d\u0442\u0438 \u0434\u0430\u043d\u043d\u044b\u0435 \u043d\u0430 \u0447\u0435\u0440\u0442\u0435\u0436. <\/p>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<figure class=\"wp-block-gallery has-nested-images columns-default is-cropped wp-block-gallery-3 is-layout-flex wp-block-gallery-is-layout-flex\">\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"916\" height=\"660\" data-id=\"613\" src=\"https:\/\/bagrut-ru.com\/wp-content\/uploads\/2023\/07\/46.png\" alt=\"\" class=\"wp-image-613\" srcset=\"https:\/\/bagrut-ru.com\/wp-content\/uploads\/2023\/07\/46.png 916w, https:\/\/bagrut-ru.com\/wp-content\/uploads\/2023\/07\/46-300x216.png 300w, https:\/\/bagrut-ru.com\/wp-content\/uploads\/2023\/07\/46-768x553.png 768w\" sizes=\"auto, (max-width: 916px) 100vw, 916px\" \/><\/figure>\n<\/figure>\n<\/div>\n<\/div>\n\n\n\n<p class=\"wp-block-paragraph\">\u041f\u043b\u043e\u0449\u0430\u0434\u044c \u0442\u0440\u0435\u0443\u0433\u043e\u043b\u044c\u043d\u0438\u043a\u0430 \u0440\u0430\u0432\u043d\u0430 \u043f\u043e\u043b\u043e\u0432\u0438\u043d\u0435 \u043f\u0440\u043e\u0438\u0437\u0432\u0435\u0434\u0435\u043d\u0438\u044f \u0441\u0442\u043e\u0440\u043e\u043d \u043d\u0430 \u0441\u0438\u043d\u0443\u0441 \u0443\u0433\u043b\u0430 \u043c\u0435\u0436\u0434\u0443 \u043d\u0438\u043c\u0438. <\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u0422\u043e\u0433\u0434\u0430: \\(S_{\\Delta ECD}=\\frac{1}{2}\\cdot EC\\cdot CD\\cdot \\sin {\\measuredangle ECD}=\\frac{a\\cdot 2a\\cdot \\sin x}{2}= a^2\\cdot \\sin x\\)<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u041f\u043e \u0443\u0441\u043b\u043e\u0432\u0438\u044e \\(S_{\\Delta ECD}=18\\)<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u041f\u043e\u043b\u0443\u0447\u0438\u043c: \\(a^2\\cdot \\sin x=18\\), \\(a^2=\\frac{18}{\\sin x}\\), \\(a=\\sqrt{\\frac{18}{\\sin x}}\\) <mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-vivid-red-color\">(1)<\/mark><\/p>\n\n\n\n<p class=\"wp-block-paragraph\"> \\(CD=2a=2\\sqrt{\\frac{18}{\\sin x}}=\\sqrt {\\frac{72}{\\sin x}}\\)<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><em>\u041e\u0442\u0432\u0435\u0442: <\/em>\\(\\sqrt{\\frac{72}{\\sin x}}\\)<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-vivid-red-color\">(\u05d1)<\/mark><\/strong> \u0412\u044b\u0440\u0430\u0437\u0438\u043c \u0441\u0442\u043e\u0440\u043e\u043d\u0443 \\(DE\\) \u0442\u0440\u0435\u0443\u0433\u043e\u043b\u044c\u043d\u0438\u043a\u0430 \\(ECD\\) \u0441 \u043f\u043e\u043c\u043e\u0449\u044c\u044e \u0442\u0435\u043e\u0440\u0435\u043c\u044b \u043a\u043e\u0441\u0438\u043d\u0443\u0441\u043e\u0432. <\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\\(DE^2=EC^2+CD^2-2\\cdot EC \\cdot CD \\cos x \\)<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\\(DE^2=a^2+(2a)^2-2\\cdot a \\cdot 2a \\cos x=5a^2-4a^2 \\cos x \\)<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u041f\u043e\u0434\u0441\u0442\u0430\u0432\u0438\u043c \u043d\u0430\u0439\u0434\u0435\u043d\u043d\u043e\u0435 \u0437\u043d\u0430\u0447\u0435\u043d\u0438\u0435  \\(a\\) \u0438\u0437 (1).  \u0417\u043d\u0430\u0447\u0435\u043d\u0438\u0435 \\(DE\\) \u0437\u0430\u0432\u0438\u0441\u0438\u0442 \u043e\u0442 \\(x\\), \u0442\u043e \u0435\u0441\u0442\u044c \u043f\u0440\u0435\u0434\u0441\u0442\u0430\u0432\u043b\u044f\u0435\u0442 \u0441\u043e\u0431\u043e\u0439 \u0444\u0443\u043d\u043a\u0446\u0438\u044e \u043e\u0442 \\(x\\):<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\\(DE^2(x)=5\\frac{18}{\\sin x}-4\\frac{18}{\\sin x} \\cos x =18(\\frac{5}{\\sin x}-4ctg x)\\)<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u0420\u0430\u0441\u0441\u043c\u043e\u0442\u0440\u0438\u043c \u0444\u0443\u043d\u043a\u0446\u0438\u044e \\(f(x)=18(\\frac{5}{\\sin x}-4ctg x)\\) \u0438 \u043d\u0430\u0439\u0434\u0435\u043c \u0435\u0435 \u043d\u0430\u0438\u043c\u0435\u043d\u044c\u0448\u0435\u0435 \u0437\u043d\u0430\u0447\u0435\u043d\u0438\u0435. \u0414\u043b\u044f \u044d\u0442\u043e\u0433\u043e \u0441\u043d\u0430\u0447\u0430\u043b\u0430 \u043d\u0430\u0439\u0434\u0435\u043c \u043f\u0440\u043e\u0438\u0437\u0432\u043e\u0434\u043d\u0443\u044e \u0444\u0443\u043d\u043a\u0446\u0438\u0438. <\/p>\n\n\n\n<p class=\"wp-block-paragraph\"> \\(f'(x)=18(-\\frac{5}{(\\sin x)^2}\\cdot \\cos x-4(-\\frac{1}{(\\sin x)^2})=\\)<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\\(=18(\\frac{4}{(\\sin x)^2}-\\frac{5\\cos x}{(\\sin x)^2}=18\\cdot \\frac {4-5\\cos x}{(\\sin x)^2}\\)<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u041d\u0430\u0439\u0434\u0435\u043c \u0442\u043e\u0447\u043a\u0438 \u044d\u043a\u0441\u0442\u0440\u0435\u043c\u0443\u043c\u0430. \u041f\u0440\u0438\u0440\u0430\u0432\u043d\u044f\u0435\u043c \u043f\u0440\u043e\u0438\u0437\u0432\u043e\u0434\u043d\u0443\u044e \u043a \u043d\u0443\u043b\u044e. <\/p>\n\n\n\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-8f761849 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<p class=\"wp-block-paragraph\">\\(f'(x)=0\\)<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\\(18\\cdot \\frac {4-5\\cos x}{(\\sin x)^2}=0\\)<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\\(4-5\\cos x=0\\), \\(\\cos x=\\frac{4}{5}\\)<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u0422\u0430\u043a \u043a\u0430\u043a \\(0&lt;x&lt;180^{\\circ}\\), \\(x=\\arccos \\frac{4}{5}\\). <\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u041e\u0441\u0442\u0430\u043b\u043e\u0441\u044c \u0432\u044b\u044f\u0441\u043d\u0438\u0442\u044c \u0437\u043d\u0430\u043a\u0438 \u043f\u0440\u043e\u0438\u0437\u0432\u043e\u0434\u043d\u043e\u0439. \u0417\u0430\u043c\u0435\u0442\u0438\u043c, \u0447\u0442\u043e \u0435\u0441\u043b\u0438  \\(x&gt;\\arccos \\frac{4}{5}\\), \u0442\u043e \\(\\cos x&lt;\\frac{4}{5}\\), \u0441\u043b\u0435\u0434\u043e\u0432\u0430\u0442\u0435\u043b\u044c\u043d\u043e,  \u0437\u043d\u0430\u0447\u0435\u043d\u0438\u0435 \\(4-5\\cos x&gt;0\\). \u0415\u0441\u043b\u0438  \\(x&lt;\\arccos \\frac{4}{5}\\), \u0442\u043e \\(\\cos x&gt;\\frac{4}{5}\\), \u0441\u043b\u0435\u0434\u043e\u0432\u0430\u0442\u0435\u043b\u044c\u043d\u043e,  \u0437\u043d\u0430\u0447\u0435\u043d\u0438\u0435 \\(4-5\\cos x&lt;0\\). \u041e\u0442\u0441\u044e\u0434\u0430 \u043f\u043e\u043b\u0443\u0447\u0430\u0435\u043c, \u0447\u0442\u043e  \u0432 \u0442\u043e\u0447\u043a\u0435  \\(x=\\arccos \\frac{4}{5}\\) \u043f\u0440\u043e\u0438\u0437\u0432\u043e\u0434\u043d\u0430\u044f  \\(f'(x)\\) \u043c\u0435\u043d\u044f\u0435\u0442 \u0437\u043d\u0430\u043a \u0441 \u043c\u0438\u043d\u0443\u0441\u0430 \u043d\u0430 \u043f\u043b\u044e\u0441, \u0438 \u044d\u0442\u043e \u0442\u043e\u0447\u043a\u0430 \u043c\u0438\u043d\u0438\u043c\u0443\u043c\u0430 \u0444\u0443\u043d\u043a\u0446\u0438\u0438 \\(f(x)=18(\\frac{5}{\\sin x}-4ctg x)\\).  <\/p>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<figure class=\"wp-block-gallery has-nested-images columns-default is-cropped wp-block-gallery-4 is-layout-flex wp-block-gallery-is-layout-flex\">\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"592\" height=\"482\" data-id=\"631\" src=\"https:\/\/bagrut-ru.com\/wp-content\/uploads\/2023\/07\/47.png\" alt=\"\" class=\"wp-image-631\" srcset=\"https:\/\/bagrut-ru.com\/wp-content\/uploads\/2023\/07\/47.png 592w, https:\/\/bagrut-ru.com\/wp-content\/uploads\/2023\/07\/47-300x244.png 300w\" sizes=\"auto, (max-width: 592px) 100vw, 592px\" \/><\/figure>\n<\/figure>\n<\/div>\n<\/div>\n\n\n\n<p class=\"wp-block-paragraph\">\\(DC^2(x)=f(x)\\) \u0424\u0443\u043d\u043a\u0446\u0438\u044f \\(x^2\\) \u0432\u043e\u0437\u0440\u0430\u0441\u0442\u0430\u0435\u0442 \u043f\u0440\u0438 \u043f\u043e\u043b\u043e\u0436\u0438\u0442\u0435\u043b\u044c\u043d\u043e\u043c \u0437\u043d\u0430\u0447\u0435\u043d\u0438\u0438 \\(x\\), \u0441\u043b\u0435\u0434\u043e\u0432\u0430\u0442\u0435\u043b\u044c\u043d\u043e, \u0447\u0435\u043c \u043c\u0435\u043d\u044c\u0448\u0435 \u0437\u043d\u0430\u0447\u0435\u043d\u0438\u0435 \\(x\\), \u0442\u0435\u043c \u043c\u0435\u043d\u044c\u0448\u0435 \u0437\u043d\u0430\u0447\u0435\u043d\u0438\u0435  \\(x^2\\). \u0422\u043e \u0435\u0441\u0442\u044c \u0442\u043e\u0447\u043a\u0430 \\(\u0445=\\arccos \\frac{4}{5}\\), \u043a\u043e\u0442\u043e\u0440\u0430\u044f \u044f\u0432\u043b\u044f\u0435\u0442\u0441\u044f \u0442\u043e\u0447\u043a\u043e\u0439 \u043c\u0438\u043d\u0438\u043c\u0443\u043c\u0430 \u0444\u0443\u043d\u043a\u0446\u0438\u0438 \\(DC^2(x)\\), \u0431\u0443\u0434\u0435\u0442 \u0442\u043e\u0447\u043a\u043e\u0439 \u043c\u0438\u043d\u0438\u043c\u0443\u043c\u0430  \u0444\u0443\u043d\u043a\u0446\u0438\u0438 \\(DC(x)\\). <\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\\(x_{min}=\\arccos \\frac{4}{5}\\)<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u041d\u0430\u0439\u0434\u0435\u043c \u043d\u0430\u0438\u043c\u0435\u043d\u044c\u0448\u0435\u0435 \u0437\u043d\u0430\u0447\u0435\u043d\u0438\u0435 \u0444\u0443\u043d\u043a\u0446\u0438\u0438 \\(DC^2(x)=f(x)\\). \u041e\u043d\u0430 \u043f\u0440\u0438\u043d\u0438\u043c\u0430\u0435\u0442 \u0435\u0433\u043e \u0432 \u0442\u043e\u0447\u043a\u0435 \u043c\u0438\u043d\u0438\u043c\u0443\u043c\u0430. <\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\\(f(x_{min})=18(\\frac{5}{\\sin x_{min}}-4ctg x_{min})\\)<\/p>\n\n\n\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-8f761849 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<p class=\"wp-block-paragraph\">\u041c\u044b \u0437\u043d\u0430\u0435\u043c, \u0447\u0442\u043e \\(\\cos x=\\frac{4}{5}\\), \\(0&lt;x&lt;180^{\\circ}\\). \u0422\u0430\u043a \u043a\u0430\u043a \\(\\cos x&gt;0, \\sin x&gt;0 \\), \u0441\u043b\u0435\u0434\u043e\u0432\u0430\u0442\u0435\u043b\u044c\u043d\u043e, \\(ctg x&gt;0\\). \u041d\u0430\u0439\u0434\u0435\u043c \\(\\sin x \\) \u0438  \\(ctg x\\) \u043f\u0440\u0438 \u0443\u0441\u043b\u043e\u0432\u0438\u0438, \u0447\u0442\u043e \\(\\cos x=\\frac{4}{5}\\). \u0421\u0434\u0435\u043b\u0430\u0435\u043c \u044d\u0442\u043e \u0441 \u043f\u043e\u043c\u043e\u0449\u044c\u044e \u043f\u0440\u044f\u043c\u043e\u0443\u0433\u043e\u043b\u044c\u043d\u043e\u0433\u043e \u0442\u0440\u0435\u0443\u0433\u043e\u043b\u044c\u043d\u0438\u043a\u0430. \u041a\u043e\u0441\u0438\u043d\u0443\u0441 \u043e\u0441\u0442\u0440\u043e\u0433\u043e \u0443\u0433\u043b\u0430 \u043f\u0440\u044f\u043c\u043e\u0443\u0433\u043e\u043b\u044c\u043d\u043e\u0433\u043e \u0442\u0440\u0435\u0443\u0433\u043e\u043b\u044c\u043d\u0438\u043a\u0430 \u0440\u0430\u0432\u0435\u043d \u043e\u0442\u043d\u043e\u0448\u0435\u043d\u0438\u044e \u043f\u0440\u0438\u043b\u0435\u0436\u0430\u0449\u0435\u0433\u043e \u043a\u0430\u0442\u0435\u0442\u0430 \u043a \u0433\u0438\u043f\u043e\u0442\u0435\u043d\u0443\u0437\u0435. \u041f\u0443\u0441\u0442\u044c \u043f\u0440\u0438\u043b\u0435\u0436\u0430\u0449\u0438\u0439 \u043a\u0430\u0442\u0435\u0442 \u043a \u0443\u0433\u043b\u0443 \\(x\\) \u0440\u0430\u0432\u0435\u043d \\(4k\\), \u0433\u0438\u043f\u043e\u0442\u0435\u043d\u0443\u0437\u0430 \u0440\u0430\u0432\u043d\u0430 \\(5k\\), \u0442\u043e\u0433\u0434\u0430 \u043f\u043e \u0442\u0435\u043e\u0440\u0435\u043c\u0435 \u041f\u0438\u0444\u0430\u0433\u043e\u0440\u0430 \u043f\u0440\u043e\u0442\u0438\u0432\u043e\u043b\u0435\u0436\u0430\u0449\u0438\u0439 \u043a\u0430\u0442\u0435\u0442 \u0431\u0443\u0434\u0435\u0442 \u0440\u0430\u0432\u0435\u043d \\(3k\\). <\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u041e\u0442\u0441\u044e\u0434\u0430  \\(\\sin x=\\frac{3}{5} \\), \\(ctg x=\\frac{4}{3} \\). <\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\\(f(x_{min})=18(\\frac{5}{\\frac{3}{5}}-4\\cdot \\frac{4}{3})=18(\\frac{25}{3}-\\frac{16}{3})=54\\)<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\\(DC^2=54\\), \\(DC=\\sqrt{54}\\)<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><em>\u041e\u0442\u0432\u0435\u0442:<\/em> \\(DC=\\sqrt{54}\\)<\/p>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<figure class=\"wp-block-gallery has-nested-images columns-default is-cropped wp-block-gallery-5 is-layout-flex wp-block-gallery-is-layout-flex\">\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"404\" height=\"422\" data-id=\"633\" src=\"https:\/\/bagrut-ru.com\/wp-content\/uploads\/2023\/07\/48.png\" alt=\"\" class=\"wp-image-633\" srcset=\"https:\/\/bagrut-ru.com\/wp-content\/uploads\/2023\/07\/48.png 404w, https:\/\/bagrut-ru.com\/wp-content\/uploads\/2023\/07\/48-287x300.png 287w\" sizes=\"auto, (max-width: 404px) 100vw, 404px\" \/><\/figure>\n<\/figure>\n<\/div>\n<\/div>\n\n\n\n<p class=\"wp-block-paragraph\"><\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u0438\u0441\u0442\u043e\u0447\u043d\u0438\u043a (\u05d0) \u041f\u0443\u0441\u0442\u044c \u0434\u043b\u0438\u043d\u0430 \u043a\u0430\u0436\u0434\u043e\u0439 \u0441\u0442\u043e\u0440\u043e\u043d\u044b \u0440\u043e\u043c\u0431\u0430 \\(ABCD\\) \u0440\u0430\u0432\u043d\u0430 \\(2a\\). \u0422\u0430\u043a \u043a\u0430\u043a \u043f\u043e \u0443\u0441\u043b\u043e\u0432\u0438\u044e \\(E\\) &#8212; \u0441\u0435\u0440\u0435\u0434\u0438\u043d\u0430 \u0441\u0442\u043e\u0440\u043e\u043d\u044b \\(BC\\), \\(EC=a\\) \\(\\measuredangle ECD=x\\). \u041f\u043b\u043e\u0449\u0430\u0434\u044c \u0442\u0440\u0435\u0443\u0433\u043e\u043b\u044c\u043d\u0438\u043a\u0430 \\(ECD\\) \u0440\u0430\u0432\u043d\u0430 18. \u041d\u0430\u043d\u0435\u0441\u0435\u043c \u044d\u0442\u0438 \u0434\u0430\u043d\u043d\u044b\u0435 \u043d\u0430 \u0447\u0435\u0440\u0442\u0435\u0436. \u041f\u043b\u043e\u0449\u0430\u0434\u044c \u0442\u0440\u0435\u0443\u0433\u043e\u043b\u044c\u043d\u0438\u043a\u0430 \u0440\u0430\u0432\u043d\u0430 \u043f\u043e\u043b\u043e\u0432\u0438\u043d\u0435 \u043f\u0440\u043e\u0438\u0437\u0432\u0435\u0434\u0435\u043d\u0438\u044f \u0441\u0442\u043e\u0440\u043e\u043d \u043d\u0430 \u0441\u0438\u043d\u0443\u0441 \u0443\u0433\u043b\u0430 \u043c\u0435\u0436\u0434\u0443 \u043d\u0438\u043c\u0438. \u0422\u043e\u0433\u0434\u0430: \\(S_{\\Delta ECD}=\\frac{1}{2}\\cdot EC\\cdot CD\\cdot \\sin {\\measuredangle ECD}=\\frac{a\\cdot 2a\\cdot \\sin x}{2}= a^2\\cdot<br \/><a class=\"moretag\" href=\"https:\/\/bagrut-ru.com\/?p=610\">+ Read More<\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[7,8],"tags":[],"class_list":["post-610","post","type-post","status-publish","format-standard","hentry","category-7","category-8"],"_links":{"self":[{"href":"https:\/\/bagrut-ru.com\/index.php?rest_route=\/wp\/v2\/posts\/610","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/bagrut-ru.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/bagrut-ru.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/bagrut-ru.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/bagrut-ru.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=610"}],"version-history":[{"count":36,"href":"https:\/\/bagrut-ru.com\/index.php?rest_route=\/wp\/v2\/posts\/610\/revisions"}],"predecessor-version":[{"id":1305,"href":"https:\/\/bagrut-ru.com\/index.php?rest_route=\/wp\/v2\/posts\/610\/revisions\/1305"}],"wp:attachment":[{"href":"https:\/\/bagrut-ru.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=610"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/bagrut-ru.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=610"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/bagrut-ru.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=610"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}