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The value of the expression cos 1^(@) c...

The value of the expression ` cos 1^(@) cos 2^(@) …. Cos 179^(@)` is

A

0

B

1

C

`1//sqrt2`

D

`-1`

Text Solution

Verified by Experts

The correct Answer is:
A
` cos 1^(@) cos2^(@) ….cos 179^(@)`
=` cos 1^(@) cos 2^(@) … cos 90^(@) … cos 170^(@) =0 " " [ therefore 90^(@) =0]`
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