सरल कीजिए : cos510^(@)cos330^(@)+sin390^...

सरल कीजिए : `cos510^(@)cos330^(@)+sin390^(@)cos120^(@)`

A

1

B

`-1`

C

0

D

`(1)/(2)`

लिखित उत्तर

Verified by Experts

The correct Answer is:

B

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