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The value of cos1^(@)" "cos2^(@)" "cos3^...

The value of `cos1^(@)" "cos2^(@)" "cos3^(@)` . . .`cos177^(@)" "cos178^(@)" "cos179^(@)` is

A

0

B

`(1)/(2)`

C

`1`

D

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

लिखित उत्तर

Verified by Experts

The correct Answer is:
a
`cos1^(@).cos2^(@)..............cos178^(@).cos179^(@)`
`rArrcos90^(@)=0`
`rArr0` [0 will make while series0]
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