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यदि 3cos alpha - 4cos^(2) alpha = 0 तो ...

यदि `3cos alpha - 4cos^(2) alpha = 0` तो `alpha` का मान निम्नलिखित में होगा?

A

`pi^c/6`

B

`pi^c/2`

C

`pi^c/5`

D

`(3pi^c)/4`

लिखित उत्तर

Verified by Experts

The correct Answer is:
A
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