{"id":9287,"date":"2022-01-05T19:30:30","date_gmt":"2022-01-05T14:00:30","guid":{"rendered":"https:\/\/mathemerize.com\/?p=9287"},"modified":"2022-06-18T02:33:31","modified_gmt":"2022-06-17T21:03:31","slug":"what-is-the-formula-of-2-cos-a-cos-b","status":"publish","type":"post","link":"https:\/\/mathemerize.com\/what-is-the-formula-of-2-cos-a-cos-b\/","title":{"rendered":"What is the Formula of 2 Cos A Cos B ?"},"content":{"rendered":"
The formula of 2 cos A cos B<\/strong> is cos<\/strong> (A + B) + cos (A – B)<\/strong>.<\/p>\n Example<\/strong><\/span> : Solve : 2 cos 75 cos 15.<\/p>\n Solution<\/strong><\/span> : We have,<\/p>\n 2 cos 75 cos 15 = cos (75 + 15) + cos (75 – 15)<\/p>\n = cos 90 + cos 60<\/p>\n = 0 + \\(1\\over 2\\)<\/p>\n = \\(1\\over 2\\)<\/p>\n What is the Formula of 2 Cos A Sin B ?<\/a><\/p>\n What is the Formula of 2 Sin A Cos B ?<\/a><\/p>\n
\nSimilar Formulas<\/h2>\n