Cos2A ve sin2A değerleri, trigonometrik özdeşlikler kullanılarak bulunabilir. 1. Cos2A: Pythagoras teoremi ve trigonometrik özdeşlikler gereği, cos2A + sin2A = 1 olur. 2. Sin2A: sin2A = 2sinA.cosA formülü ile bulunur.
{"dqn00":{"state":{"logoProps":{"url":"https://yandex.com.tr"},"formProps":{"action":"https://yandex.com.tr/search","searchLabel":"Bul"},"services":{"activeItemId":"answers","items":[{"url":"https://yandex.com.tr/gundem","title":"Gündem","id":"agenda"},{"url":"https://yandex.com.tr/shopping","title":"Alışveriş","id":"shopping"},{"url":"https://yandex.com.tr/finance","title":"Finans","id":"finance"},{"url":"https://yandex.com.tr/yacevap","title":"YaCevap","id":"answers"},{"url":"https://yandex.com.tr/video/search?text=popüler+videolar","title":"Video","id":"video"},{"url":"https://yandex.com.tr/gorsel","title":"Görsel","id":"images"}]},"userProps":{"loggedIn":false,"ariaLabel":"Menü","plus":false,"birthdayHat":false,"child":false,"isBirthdayUserId":true,"className":"PortalHeader-User"},"userIdProps":{"flag":"skin","lang":"tr","host":"yandex.com.tr","project":"neurolib","queryParams":{"utm_source":"portal-neurolib"},"retpath":"https%3A%2F%2Fyandex.com.tr%2Fyacevap%2Fc%2Fbilim-ve-egitim%2Fq%2Fsin-2-a-formulu-nedir-2025298527%3Flr%3D213%26ncrnd%3D96003","tld":"com.tr"},"suggestProps":{"selectors":{"form":".HeaderForm","input":".HeaderForm-Input","submit":".HeaderForm-Submit","clear":".HeaderForm-Clear","layout":".HeaderForm-InputWrapper"},"suggestUrl":"https://yandex.com.tr/suggest/suggest-ya.cgi?show_experiment=222&show_experiment=224","deleteUrl":"https://yandex.com.tr/suggest-delete-text?srv=web&text_to_delete=","suggestPlaceholder":"Yapay zeka ile bul","platform":"desktop","hideKeyboardOnScroll":false,"additionalFormClasses":["mini-suggest_theme_tile","mini-suggest_overlay_tile","mini-suggest_expanding_yes","mini-suggest_prevent-empty_yes","mini-suggest_type-icon_yes","mini-suggest_personal_yes","mini-suggest_type-icon_yes","mini-suggest_rich_yes","mini-suggest_overlay_dark","mini-suggest_large_yes","mini-suggest_copy-fact_yes","mini-suggest_clipboard_yes","mini-suggest_turboapp_yes","mini-suggest_expanding_yes","mini-suggest_affix_yes","mini-suggest_carousel_yes","mini-suggest_traffic_yes","mini-suggest_re-request_yes","mini-suggest_source_yes","mini-suggest_favicon_yes","mini-suggest_more","mini-suggest_long-fact_yes","mini-suggest_hide-keyboard_yes","mini-suggest_clear-on-submit_yes","mini-suggest_focus-on-change_yes","mini-suggest_short-fact_yes","mini-suggest_app_yes","mini-suggest_grouping_yes","mini-suggest_entity-suggest_yes","mini-suggest_redesigned-navs_yes","mini-suggest_title-multiline_yes","mini-suggest_type-icon-wrapped_yes","mini-suggest_fulltext-highlight_yes","mini-suggest_fulltext-insert_yes","mini-suggest_lines_multi"],"counter":{"service":"neurolib_com_tr_desktop","url":"//yandex.ru/clck/jclck","timeout":300,"params":{"dtype":"stred","pid":"0","cid":"2873"}},"noSubmit":false,"formAction":"https://yandex.com.tr/search","tld":"com.tr","suggestParams":{"srv":"serp_com_tr_desktop","wiz":"TrWth","yu":"3474747251753699067","lr":213,"uil":"tr","fact":1,"v":4,"use_verified":1,"safeclick":1,"skip_clickdaemon_host":1,"rich_nav":1,"verified_nav":1,"rich_phone":1,"use_favicon":1,"nav_favicon":1,"mt_wizard":1,"history":1,"nav_text":1,"maybe_ads":1,"icon":1,"hl":1,"n":10,"portal":1,"platform":"desktop","mob":0,"extend_fw":1,"suggest_entity_desktop":"1","entity_enrichment":"1","entity_max_count":"5"},"disableWebSuggest":false},"context":{"query":"","reqid":"1753699067238419-8296366200547474725-balancer-l7leveler-kubr-yp-vla-106-BAL","lr":"213","aliceDeeplink":"{\"text\":\"\"}"},"baobab":{"parentNode":{"context":{"genInfo":{"prefix":"dqn0w01-0-1"},"ui":"desktop","service":"neurolib","fast":{"name":"neuro_library","subtype":"header"}}}}},"type":"neuro_library","subtype":"header"},"dqn01":{"state":{"links":[{"id":"main","url":"/yacevap","title":"Ana Sayfa","target":"_self"},{"id":"technologies","url":"/yacevap/c/teknoloji","title":"Teknoloji","target":"_self"},{"id":"psychology-and-relationships","url":"/yacevap/c/psikoloji-ve-iliskiler","title":"Psikoloji ve İlişkiler","target":"_self"},{"id":"science-and-education","url":"/yacevap/c/bilim-ve-egitim","title":"Bilim ve Eğitim","target":"_self"},{"id":"food","url":"/yacevap/c/yemek","title":"Yemek","target":"_self"},{"id":"culture-and-art","url":"/yacevap/c/kultur-ve-sanat","title":"Kültür ve Sanat","target":"_self"},{"id":"tv-and-films","url":"/yacevap/c/filmler-ve-diziler","title":"Filmler ve Diziler","target":"_self"},{"id":"economics-and-finance","url":"/yacevap/c/ekonomi-ve-finans","title":"Ekonomi ve Finans","target":"_self"},{"id":"games","url":"/yacevap/c/oyun","title":"Oyun","target":"_self"},{"id":"sport","url":"/yacevap/c/spor","title":"Spor","target":"_self"},{"id":"beauty-and-style","url":"/yacevap/c/guzellik-ve-moda","title":"Güzellik ve Moda","target":"_self"},{"id":"useful-tips","url":"/yacevap/c/faydali-ipuclari","title":"Faydalı İpuçları","target":"_self"},{"id":"auto","url":"/yacevap/c/otomobil","title":"Otomobil","target":"_self"},{"id":"law","url":"/yacevap/c/hukuk","title":"Hukuk","target":"_self"},{"id":"travel","url":"/yacevap/c/seyahat","title":"Seyahat","target":"_self"},{"id":"animals-and-nature","url":"/yacevap/c/hayvanlar-ve-doga","title":"Hayvanlar ve doğa","target":"_self"},{"id":"health","url":"/yacevap/c/saglik","title":"Sağlık","target":"_self"},{"id":"other","url":"/yacevap/c/diger","title":"Diğer","target":"_self"}],"activeLinkId":"science-and-education","title":"Kategoriler","baobab":{"parentNode":{"context":{"genInfo":{"prefix":"dqn0w02-0-1"},"ui":"desktop","service":"neurolib","fast":{"name":"neuro_library","subtype":"header-categories"}}}}},"type":"neuro_library","subtype":"header-categories"},"dqn02":{"state":{"tld":"com.tr","markdown":"**Sin2a formülleri** iki şekilde ifade edilebilir:\n\n1. **Sin ve cos cinsinden**: Sin2a = **2 sin A cos A** [```1```](https://mathemerizecom.web.app/what-is-the-formula-of-sin-2a/)[```2```](https://www.math-only-math.com/sin-2A-in-terms-of-A.html).\n2. **Tanjant cinsinden**: Sin2a = **2 tan A / (1 + tan²A)** [```1```](https://mathemerizecom.web.app/what-is-the-formula-of-sin-2a/)[```3```](https://www.cuemath.com/sin2x-formula/).","sources":[{"sourceId":1,"url":"https://mathemerizecom.web.app/what-is-the-formula-of-sin-2a/","title":"Sin 2A Formula - Proof and Examples - Mathemerize","shownUrl":"https://mathemerizecom.web.app/what-is-the-formula-of-sin-2a/"},{"sourceId":2,"url":"https://www.math-only-math.com/sin-2A-in-terms-of-A.html","title":"Sin 2A in Terms of A | Double Angle Formulae for Sin...","shownUrl":"https://www.math-only-math.com/sin-2A-in-terms-of-A.html"},{"sourceId":3,"url":"https://www.cuemath.com/sin2x-formula/","title":"Sin2X - Formula, Identities, Examples, Proof | Sin^2X Identities","shownUrl":"https://www.cuemath.com/sin2x-formula/"},{"sourceId":4,"url":"https://www.youtube.com/watch?v=JKWvrggnF7g","title":"How to Derive The Formula For Sin 2A - Maths... - YouTube","shownUrl":"https://www.youtube.com/watch?v=JKWvrggnF7g"},{"sourceId":5,"url":"https://www.acilmatematik.com.tr/images/files/4a15c70c-00ce-4449-967d-e29a3fa72007.pdf","title":"TRİGONOMETRİ","shownUrl":"https://www.acilmatematik.com.tr/images/files/4a15c70c-00ce-4449-967d-e29a3fa72007.pdf"}],"isHermione":false,"headerProps":{"header":"Sin2a formülü nedir?","homeUrl":"/yacevap","categoryUrl":"/yacevap/c/bilim-ve-egitim","categoryTitle":"Bilim ve Eğitim","canUseNativeShare":false,"extralinksItems":[{"variant":"reportFeedback","reportFeedback":{"feature":"YazekaAnswers","title":"Bu yanıtta yanlış olan ne?","checkBoxLabels":[{"value":"Uygunsuz veya aşağılayıcı yanıt"},{"value":"Soruma yanıt verilmedi"},{"value":"Bilgi hataları var"},{"value":"Bilgi yetersiz"},{"value":"Bilgi güncel değil"},{"value":"Görüntüleme hataları"},{"value":"Yanıtta kullanılan kaynaklar güvenilir değil"},{"value":"Bu soru için yanıt gerekmiyor"},{"value":"Diğer"}]}}],"tags":[{"href":"/yacevap/t/matematik","text":"#Matematik"},{"href":"/yacevap/t/trigonometri","text":"#Trigonometri"},{"href":"/yacevap/t/formuller","text":"#Formüller"}]},"suggestProps":{"suggestItems":[{"id":0,"text":"Trigonometride sin2a neden önemlidir?","url":"/search?text=Trigonometride+sin2a%27n%C4%B1n+%C3%B6nemi&promo=force_neuro"},{"id":1,"text":"Sin2a formülü nasıl türetilir?","url":"/search?text=Sin2a+form%C3%BCl%C3%BC+nas%C4%B1l+t%C3%BCretilir%3F&promo=force_neuro"},{"id":2,"text":"Sin ve cos cinsinden başka hangi formüller var?","url":"/search?text=Sin+ve+cos+cinsinden+trigonometrik+form%C3%BCller&promo=force_neuro"},{"id":-1,"url":"/search?text=Sin2a+form%C3%BCl%C3%BC+nedir%3F&promo=force_neuro","text":"Daha fazla bilgi"}]},"feedbackProps":{"feature":"YazekaAnswers","baseProps":{"metaFields":{"yandexuid":"3474747251753699067","reqid":"1753699067238419-8296366200547474725-balancer-l7leveler-kubr-yp-vla-106-BAL"}},"positiveCheckboxLabels":[{"value":"Yanıtı çok beğendim"},{"value":"Yanıtta gerekli bilgiler var"},{"value":"Kolay anlaşılır"},{"value":"Diğer"}],"negativeCheckboxLabels":[{"value":"Uygunsuz veya aşağılayıcı yanıt"},{"value":"Soruma yanıt verilmedi"},{"value":"Bilgi hataları var"},{"value":"Bilgi yetersiz"},{"value":"Bilgi güncel değil"},{"value":"Görüntüleme hataları"},{"value":"Yanıtta kullanılan kaynaklar güvenilir değil"},{"value":"Bu soru için yanıt gerekmiyor"},{"value":"Diğer"}]},"dialogStoreProps":{"baseUrl":"","baseUrlWs":""},"globalStoreProps":{"imageBackendUrl":"https://yandex.com.tr/images-apphost/image-download?cbird=171","query":"","retina":false,"avatarId":"0","isHermione":false,"isMacOS":false,"tld":"com.tr","isEmbeddedFuturis":false,"isLoggedIn":false,"brand":"yazeka","reqId":"1753699067238419-8296366200547474725-balancer-l7leveler-kubr-yp-vla-106-BAL","device":{"isIOS":false,"platform":"desktop"}},"baobab":{"parentNode":{"context":{"genInfo":{"prefix":"dqn0w03-0-1"},"ui":"desktop","service":"neurolib","fast":{"name":"neuro_library","subtype":"question"}}}}},"type":"neuro_library","subtype":"question"},"dqn03":{"state":{"relatedMaterials":[{"favicons":["https://favicon.yandex.net/favicon/v2/https://www.formul.gen.tr/sin-ve-cos-toplam-formulleri-nelerdir.html?size=16&stub=1","https://favicon.yandex.net/favicon/v2/https://www.eokultv.com/toplam-ve-fark-formulleri-12-sinif/36219?size=16&stub=1","https://favicon.yandex.net/favicon/v2/https://fizikliblog.blogspot.com/2013/10/trigonometrik-toplam-ve-fark-formulleri.html?size=16&stub=1","https://favicon.yandex.net/favicon/v2/https://www.sabah.com.tr/egitim/trigonometri-formulleri-trigonometri-toplam-ve-fark-formulleri-nelerdir-e1-5972880?size=16&stub=1","https://favicon.yandex.net/favicon/v2/https://www.bilgievim.com.tr/trigonometri?size=16&stub=1"],"href":"/yacevap/c/bilim-ve-egitim/q/sin-toplam-formulu-nedir-4165288682","header":"Sin toplam formülü nedir?","teaser":"Sinüs toplam formülü şu şekildedir: sin(a + b) = sin(a) cos(b) + cos(a) sin(b).","tags":[{"href":"/yacevap/t/matematik","text":"#Matematik"},{"href":"/yacevap/t/trigonometri","text":"#Trigonometri"},{"href":"/yacevap/t/formuller","text":"#Formüller"}]},{"favicons":["https://favicon.yandex.net/favicon/v2/https://www.formul.gen.tr/cos2a-formulu-nedir-ve-nasil-kullanilir.html?size=16&stub=1","https://favicon.yandex.net/favicon/v2/https://www.calculatoratoz.com/en/cos-2a-calculator/Calc-2661?size=16&stub=1","https://favicon.yandex.net/favicon/v2/https://mathemerizecom.web.app/what-is-the-formula-of-cos-2a/?size=16&stub=1","https://favicon.yandex.net/favicon/v2/https://www.mmsrn.com/trigonometri-yarim-aci-formulleri/?size=16&stub=1","https://favicon.yandex.net/favicon/v2/https://www.mathdoubts.com/cos-double-angle-identity/?size=16&stub=1"],"href":"/yacevap/c/bilim-ve-egitim/q/cos-2-a-formulu-nedir-619892606","header":"Cos2a formülü nedir?","teaser":"Cos2a formülü üç farklı şekilde yazılabilir: 1. cos²a - sin²a; 2. 2cos²a - 1; 3. 1 - 2sin²a.","tags":[{"href":"/yacevap/t/matematik","text":"#Matematik"},{"href":"/yacevap/t/trigonometri","text":"#Trigonometri"},{"href":"/yacevap/t/formuller","text":"#Formüller"}]},{"favicons":["https://favicon.yandex.net/favicon/v2/https://www.vedantu.com/maths/sin-cos-tan-values?size=16&stub=1","https://favicon.yandex.net/favicon/v2/https://www.acilmatematik.com.tr/images/files/4a15c70c-00ce-4449-967d-e29a3fa72007.pdf?size=16&stub=1","https://favicon.yandex.net/favicon/v2/https://www.symbolab.com/popular-trigonometry/trigonometry-48202?size=16&stub=1","https://favicon.yandex.net/favicon/v2/https://www.mathsisfun.com/algebra/trigonometric-identities.html?size=16&stub=1","https://favicon.yandex.net/favicon/v2/https://www.cuemath.com/double-angle-formulas/?size=16&stub=1"],"href":"/yacevap/c/bilim-ve-egitim/q/cos-2-a-ve-sin-2-a-nasil-bulunur-4221930381","header":"Cos2A ve sin2A nasıl bulunur?","teaser":"Cos2A ve sin2A değerleri, trigonometrik özdeşlikler kullanılarak bulunabilir. 1. Cos2A: Pythagoras teoremi ve trigonometrik özdeşlikler gereği, cos2A + sin2A = 1 olur. 2. Sin2A: sin2A = 2sinA.cosA formülü ile bulunur.","tags":[{"href":"/yacevap/t/matematik","text":"#Matematik"},{"href":"/yacevap/t/trigonometri","text":"#Trigonometri"},{"href":"/yacevap/t/formuller","text":"#Formüller"}]}],"baobab":{"parentNode":{"context":{"genInfo":{"prefix":"dqn0w04-0-1"},"ui":"desktop","service":"neurolib","fast":{"name":"neuro_library","subtype":"related"}}}}},"type":"neuro_library","subtype":"related"},"dqn04":{"state":{"tld":"com.tr","isIos":false,"isQuestionPage":true,"baobab":{"parentNode":{"context":{"genInfo":{"prefix":"dqn0w05-0-1"},"ui":"desktop","service":"neurolib","fast":{"name":"neuro_library","subtype":"ask_question"}}}}},"type":"neuro_library","subtype":"ask_question"},"dqn05":{"state":{"generalLinks":[{"id":"privacy-policy","text":"Gizlilik politikası","url":"https://yandex.com.tr/legal/privacy_policy/"},{"id":"terms-of-service","text":"Kullanıcı sözleşmesi","url":"https://yandex.com.tr/legal/tos/"},{"id":"report-error","text":"Hata bildir","url":"https://forms.yandex.com.tr/surveys/13748122.01a6645a1ef15703c9b82a7b6c521932ddc0e3f7/"},{"id":"about-company","text":"Şirket hakkında","url":"https://yandex.com.tr/project/portal/contacts/"}],"copyright":{"url":"https://yandex.com.tr","currentYear":2025},"socialLinks":[{"type":"tiktok","url":"https://redirect.appmetrica.yandex.com/serve/677728751613663494","title":"TikTok"},{"url":"https://redirect.appmetrica.yandex.com/serve/173325632992778150","type":"youtube","title":"Youtube"},{"url":"https://redirect.appmetrica.yandex.com/serve/677728793472889615","type":"facebook","title":"Facebook"},{"url":"https://redirect.appmetrica.yandex.com/serve/1182131906657966033","type":"instagram","title":"Instagram"},{"url":"https://redirect.appmetrica.yandex.com/serve/893945194569821080","type":"x","title":"X"}],"categoriesLink":[],"disclaimer":"Seçili sitelerdeki metinlere göre Yazeka tarafından oluşturulan yanıtlardır. Hatalar içerebilir. Önemli bilgileri kontrol ediniz.","baobab":{"parentNode":{"context":{"genInfo":{"prefix":"dqn0w06-0-1"},"ui":"desktop","service":"neurolib","fast":{"name":"neuro_library","subtype":"footer"}}}}},"type":"neuro_library","subtype":"footer"}}