Math, asked by kuldipsuthar121, 1 year ago

cos3A + 2 cos5A + cos7A/
cos A + 2cos3A + cos5A
= cos 2A - sin 2A · tan3A

Answers

Answered by cjaya

6

Answer:

Here is the soln

Hope it helps ❤️ ❤️ ❤️

Good day ☺️

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