\u0421\u043e\u043b\u0442\u04af\u0441\u0442\u0456\u043a \u049a\u0430\u0437\u0430\u049b\u0441\u0442\u0430\u043d \u043e\u0431\u043b\u044b\u0441\u044b \u0410\u049b\u0436\u0430\u0440 \u0430\u0443\u0434\u0430\u043d\u044b<\/p>\n
\u0422\u0430\u043b\u0448\u044b\u049b \u043e\u0440\u0442\u0430 \u043c\u0435\u043a\u0442\u0435\u0431\u0456\u043d\u0456\u04a3 10-\u0448\u044b \u0441\u044b\u043d\u044b\u043f \u043e\u049b\u0443\u0448\u044b\u0441\u044b<\/p>\n
\u041a\u0435\u043d\u0436\u0435\u0431\u0430\u0439 \u0414\u0430\u043d\u0430\u0433\u04af\u043b<\/p>\n
\u041a\u04af\u0440\u0434\u0435\u043b\u0456 \u0442\u0440\u0438\u0433\u043e\u043d\u043e\u043c\u0435\u0442\u0440\u0438\u044f\u043b\u044b\u049b \u0442\u0435\u04a3\u0434\u0435\u0443\u043b\u0435\u0440\u0434\u0456\u04a3 \u0448\u044b\u0493\u0430\u0440\u0443 \u0436\u043e\u043b\u0434\u0430\u0440\u044b.<\/p>\n
1.<\/p>\n
\u0428\u0435\u0448\u0443\u0456:<\/p>\n
\u0421\u043e\u043d\u0434\u0430 <\/em><\/p>\n \u0422\u0435\u04a3\u0434\u0435\u0443\u0434\u0456\u04a3 \u0435\u043a\u0456 \u0436\u0430\u0493\u044b\u043d\u0434\u0430 -\u0433\u0435 \u0431\u04e9\u043b\u0456\u043f,<\/em><\/p>\n \u0422\u0435\u04a3\u0434\u0435\u0443\u0434\u0456 \u0431\u04e9\u043b\u0435\u043c\u0456\u0437, \u0441\u043e\u043d\u0434\u0430 \u043a\u0432\u0430\u0434\u0440\u0430\u0442 \u0442\u0435\u04a3\u0434\u0435\u0443\u0456 \u0448\u044b\u0493\u0430\u0434\u044b.<\/em><\/p>\n \u0411\u04b1\u043d\u0434\u0430 D<0, \u00d8<\/em><\/p>\n \u0416\u0430\u0443\u0430\u0431\u044b: <\/em><\/p>\n 2. Cos 9x-2cos 6x=2<\/em><\/p>\n \u0428\u0435\u0448\u0443\u0456:<\/em><\/p>\n \u0422\u0435\u04a3\u0434\u0435\u0443\u0434\u0456 cos 3(3x)-2cos 2(3x)-2=0 \u0442\u04af\u0440\u0456\u043d\u0434\u0435 \u0436\u0430\u0437\u0430\u043c\u044b\u0437. <\/em><\/p>\n \u0421os 3x=4cos3 x-3cos x; cos 2x=2cos2 x-1 \u0444\u043e\u0440\u043c\u0443\u043b\u0430\u043b\u0430\u0440\u044b\u043d \u049b\u043e\u043b\u0434\u0430\u043d\u044b\u043c\u044b\u0437, \u0441\u043e\u043d\u0434\u0430: <\/em><\/p>\n 4cos3 3x-3cos 3x-2(2cos23x-1)-2=0<\/em><\/p>\n 4cos3 3x-4cos2 3x-3cos 3x=0<\/em><\/p>\n Cos 3x (4cos23x-4cos3x-3)=0<\/em><\/p>\n \u041e\u0441\u044b\u0434\u0430\u043d<\/em><\/p>\n \u041a\u0432\u0430\u0434\u0440\u0430\u0442 \u0442\u0435\u04a3\u0434\u0435\u0443\u0456\u043d \u0448\u0435\u0448\u0456\u043f: \u00d8 \u0436\u04d9\u043d\u0435 <\/em><\/p>\n \u0416\u0430\u0443\u044b\u0431\u044b: <\/em><\/p>\n 3.(sinx-cosx)2+tgx=2sin2x<\/em><\/p>\n \u0428\u0435\u0448\u0443\u0456: \u041c\u0411\u041c: \u0441osx\u22600, <\/em><\/p>\n \u0431\u043e\u043b\u0493\u0430\u043d\u0434\u044b\u049b\u0442\u0430\u043d:<\/em><\/p>\n \u0415\u043a\u0456\u043d\u0448\u0456 \u0442\u0435\u04a3\u0434\u0435\u0443\u0434\u0456 cos2x-sin2x-(cos2x+sin2x)+2sinxcosx=0 \u0442\u04af\u0440\u0456\u043d\u0434\u0435 \u0436\u0430\u0437\u0430\u043c\u044b\u0437, \u0441\u043e\u043d\u0434\u0430:<\/em><\/p>\n -2sin2x+2sinxcosx=0<\/em><\/p>\n -2sinx(sinx-cosx)=0<\/em><\/p>\n sinx=0, x2=\u03c0\u03ba ,\u03ba \u20ac Z; x2- \u0442\u0435\u04a3\u0434\u0435\u0443\u0434\u0456\u04a3 \u0448\u0430\u0440\u0442\u044b\u043d \u049b\u0430\u043d\u0430\u0493\u0430\u0442\u0442\u0430\u043d\u0434\u044b\u0440\u043c\u0430\u0439\u0434\u044b;<\/em><\/p>\n sinx-cosx=0<\/em><\/p>\n tgx=1, ; \u04453- \u04451-\u0433\u0435 \u043a\u0456\u0440\u043c\u0435\u0439\u0434\u0456.<\/em><\/p>\n \u0416\u0430\u0443\u0430\u0431\u044b: <\/em><\/p>\n 4.<\/p>\n \u0428\u0435\u0448\u0443\u0456: \u0422\u0435\u04a3\u0434\u0435\u0443 \u0435\u043a\u0456 \u0442\u0435\u04a3\u0434\u0435\u0443\u043b\u0435\u0440 \u0436\u04af\u0439\u0435\u0441\u0456\u043d\u0435 \u043c\u04d9\u043d\u0434\u0435\u0441<\/em><\/p>\n \u0416\u0430\u0443\u0430\u0434\u044b: \u0445=4\u03c0m, m \u20ac Z<\/em><\/p>\n","protected":false},"excerpt":{"rendered":" \u0421\u043e\u043b\u0442\u04af\u0441\u0442\u0456\u043a \u049a\u0430\u0437\u0430\u049b\u0441\u0442\u0430\u043d \u043e\u0431\u043b\u044b\u0441\u044b \u0410\u049b\u0436\u0430\u0440 \u0430\u0443\u0434\u0430\u043d\u044b \u0422\u0430\u043b\u0448\u044b\u049b \u043e\u0440\u0442\u0430 \u043c\u0435\u043a\u0442\u0435\u0431\u0456\u043d\u0456\u04a3 10-\u0448\u044b \u0441\u044b\u043d\u044b\u043f \u043e\u049b\u0443\u0448\u044b\u0441\u044b \u041a\u0435\u043d\u0436\u0435\u0431\u0430\u0439 \u0414\u0430\u043d\u0430\u0433\u04af\u043b \u041a\u04af\u0440\u0434\u0435\u043b\u0456 \u0442\u0440\u0438\u0433\u043e\u043d\u043e\u043c\u0435\u0442\u0440\u0438\u044f\u043b\u044b\u049b \u0442\u0435\u04a3\u0434\u0435\u0443\u043b\u0435\u0440\u0434\u0456\u04a3 \u0448\u044b\u0493\u0430\u0440\u0443 \u0436\u043e\u043b\u0434\u0430\u0440\u044b. 1. \u0428\u0435\u0448\u0443\u0456: \u0421\u043e\u043d\u0434\u0430 \u0422\u0435\u04a3\u0434\u0435\u0443\u0434\u0456\u04a3 \u0435\u043a\u0456 \u0436\u0430\u0493\u044b\u043d\u0434\u0430 -\u0433\u0435 \u0431\u04e9\u043b\u0456\u043f, \u0422\u0435\u04a3\u0434\u0435\u0443\u0434\u0456 \u0431\u04e9\u043b\u0435\u043c\u0456\u0437, \u0441\u043e\u043d\u0434\u0430 \u043a\u0432\u0430\u0434\u0440\u0430\u0442 \u0442\u0435\u04a3\u0434\u0435\u0443\u0456 \u0448\u044b\u0493\u0430\u0434\u044b. \u0411\u04b1\u043d\u0434\u0430 D<0, \u00d8<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"advanced_seo_description":"","jetpack_seo_html_title":"","jetpack_seo_noindex":false,"jetpack_seo_schema_type":"","_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_wpcom_ai_launchpad_first_post":false,"_jetpack_feature_clip_id":0,"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_publicize_message":"","jetpack_publicize_feature_enabled":true,"jetpack_social_post_already_shared":true,"jetpack_social_options":{"image_generator_settings":{"template":"highway","default_image_id":0,"font":"","enabled":false},"version":2},"jetpack_post_was_ever_published":false},"categories":[213196878],"tags":[],"class_list":["post-123779","post","type-post","status-publish","format-standard","hentry","category-newsabak"],"blocksy_meta":[],"acf":[],"jetpack_publicize_connections":[],"jetpack_sharing_enabled":true,"jetpack_shortlink":"https:\/\/wp.me\/p17n9Y-wcr","jetpack_likes_enabled":true,"jetpack-related-posts":[],"jetpack_featured_media_url":"","_links":{"self":[{"href":"https:\/\/45minut.biz\/index.php?rest_route=\/wp\/v2\/posts\/123779","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/45minut.biz\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/45minut.biz\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/45minut.biz\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/45minut.biz\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=123779"}],"version-history":[{"count":0,"href":"https:\/\/45minut.biz\/index.php?rest_route=\/wp\/v2\/posts\/123779\/revisions"}],"wp:attachment":[{"href":"https:\/\/45minut.biz\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=123779"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/45minut.biz\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=123779"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/45minut.biz\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=123779"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}