Math, asked by vukguk, 1 year ago

cos 5 X + Cos X upon cos 5 x minus cos x

Answers

Answered by danielshivasai

0

Top answer · 39 votes

(sin5x-2sin3x+sinx)/(cos5x-cosx)=[{2sin(5x+x)/2cos(5x-x)/2}-2sin3x]/{2sin(5x+x)/2sin(x-5x)/2}=(2sin3 ...

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