{"id":9273,"date":"2022-01-05T01:11:26","date_gmt":"2022-01-04T19:41:26","guid":{"rendered":"https:\/\/mathemerize.com\/?p=9273"},"modified":"2022-01-05T01:12:18","modified_gmt":"2022-01-04T19:42:18","slug":"what-is-the-formula-of-tan-a-b-c","status":"publish","type":"post","link":"https:\/\/mathemerize.com\/what-is-the-formula-of-tan-a-b-c\/","title":{"rendered":"What is the Formula of Tan (A + B + C) ?"},"content":{"rendered":"
The formula of tan (A + B + C)<\/strong> is \\(tan A + tan B + tan C – tan A tan B tan C\\over 1 – tan A tan B – tan B tan C – tan C tan A\\)<\/strong>.<\/p>\n Proof :<\/strong><\/p>\n We have,<\/p>\n tan (A + B + C) = tan((A + B) + C)<\/p>\n \\(\\implies\\) tan (A + B + C) = \\(tan (A + B) + tan C\\over tan (A + B) tan C\\)<\/p>\n \\(\\implies\\) tan (A + B + C) = \\({tan A + tan B\\over 1 – tan A tan B} + tan C\\over 1 – ({tan A + tan B\\over 1 – tan A tan B})tan C\\)<\/p>\n \\(\\implies\\) tan (A + B + C) = \\(tan A + tan B + tan C – tan A tan B tan C\\over 1 – tan A tan B – tan B tan C – tan C tan A\\)<\/p>\n","protected":false},"excerpt":{"rendered":" Solution : The formula of tan (A + B + C) is \\(tan A + tan B + tan C – tan A tan B tan C\\over 1 – tan A tan B – tan B tan C – tan C tan A\\). Proof : We have, tan (A + B + C) = tan((A …<\/p>\n