Math, asked by priyanka0110, 1 year ago

prove that cos40cos100cos160=1/8

Answers

Answered by ShaikJavidbasha

9

Answer:

Step-by-step explanation:

Let

C = cos40cos100cos160

S = sin40sin100sin160

S.C = sin40cos40 sin100cos100 sin160cos160

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ShaikJavidbasha: plese mark as brainliest

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