Math, asked by s11948, 9 months ago

Prove that cos 200 . cos400 . cos800 = 1 8

Answers

Answered by kandipalliramya

2

Answer:

cos60° cos60°cos80°

1/2×1/2×1/4

1/16=1/16 proved.......

Answered by samairamehta24

1

1/2 *1/2*1/4
1/16=1/16 ....I proved

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