{"id":9300,"date":"2022-01-05T20:07:05","date_gmt":"2022-01-05T14:37:05","guid":{"rendered":"https:\/\/mathemerize.com\/?p=9300"},"modified":"2022-06-18T02:13:23","modified_gmt":"2022-06-17T20:43:23","slug":"what-is-the-formula-of-cos-c-cos-d-2","status":"publish","type":"post","link":"https:\/\/mathemerize.com\/what-is-the-formula-of-cos-c-cos-d-2\/","title":{"rendered":"What is the Formula of Cos C – Cos D ?"},"content":{"rendered":"

Solution :<\/h2>\n

The formula of cos C – cos D<\/strong> is\u00a02 sin(\\(C + D\\over 2\\)) sin(\\(D – C\\over 2\\))<\/strong>.<\/p>\n

Example<\/strong><\/span> : Express cos \\(6\\theta\\) – cos \\(8\\theta\\) as a product.<\/p>\n

Solution<\/span><\/strong> : We have,<\/p>\n

cos \\(6\\theta\\) – cos \\(8\\theta\\) = 2 sin(\\(6\\theta + 8\\theta\\over 2\\)) sin(\\(8\\theta – 6 \\theta\\over 2\\))<\/p>\n

= 2 sin \\(7\\theta\\) sin \\(\\theta\\)<\/p>\n

\n

Similar Formulas<\/h2>\n

What is the Formula of Sin C + Sin D ?<\/a><\/p>\n

What is the Formula of Cos C + Cos D ?<\/a><\/p>\n

What is the Formula of Sin C – Sin D ?<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"

Solution : The formula of cos C – cos D is\u00a02 sin(\\(C + D\\over 2\\)) sin(\\(D – C\\over 2\\)). Example : Express cos \\(6\\theta\\) – cos \\(8\\theta\\) as a product. Solution : We have, cos \\(6\\theta\\) – cos \\(8\\theta\\) = 2 sin(\\(6\\theta + 8\\theta\\over 2\\)) sin(\\(8\\theta – 6 \\theta\\over 2\\)) = 2 sin \\(7\\theta\\) sin …<\/p>\n

What is the Formula of Cos C – Cos D ?<\/span> Read More »<\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"site-sidebar-layout":"default","site-content-layout":"default","ast-global-header-display":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":""},"categories":[43,60],"tags":[],"yoast_head":"\nWhat is the Formula of Cos C - Cos D ? - Mathemerize<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/mathemerize.com\/what-is-the-formula-of-cos-c-cos-d-2\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"What is the Formula of Cos C - Cos D ? - Mathemerize\" \/>\n<meta property=\"og:description\" content=\"Solution : The formula of cos C – cos D is\u00a02 sin((C + Dover 2)) sin((D – Cover 2)). 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