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The value of cos 1^@ cos 2^@ cos 3^@... ...

The value of `cos 1^@ cos 2^@ cos 3^@... cos 179^@` is

A

`(1)/(sqrt(2))`

B

0

C

1

D

-1

Text Solution

Verified by Experts

The correct Answer is:
B
Given expression, `cos1^(@) cos2^(@) cos3^(@)...cos179^(@)`
`" "=cos1^(@)cos2^(@)...cos90^(@)...cos179^(@)" "[becausecos90^(@)=0]` ltBrgt =0
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