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If cos^(2) alpha - sin alpha = 1/4, then...

If `cos^(2) alpha - sin alpha = 1/4`, then the value of `a (0 le alpha le 360^@)` will be-

A

`30^(@)`

B

`120^(@)`

C

`150^(@)`

D

`105^(@)`

Text Solution

Verified by Experts

The correct Answer is:
A, C
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