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Question

cos1 × cos2 × cos3 ×……..× cos180 is equal to:


A

1

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B

0

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C

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D

-1

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Solution

The correct option is B

0


cos 90 = 0,
cos1 × cos2 × cos3 ×……..× cos180 is equal to: 0, since any number multiplied by 0 is 0.


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