Math, asked by subhajitsarkar28, 1 year ago

PROVE
cos a/8 +cos 3a/8 + cos5a/8 +cos 7a/8 =0

Answers

Answered by danielshivasai

0

Prove that: cos3A+cos5A+cos7A+cos15A=4 cos4Acos5Acos6A. 3.6 K+ Views | 300+ .... (sin(4.1-2β) +sin(4B-2A)cos(4A-2B)+cos(4B-2A)=tan(A+B ...

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