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If 0lethetale90^@ and 4 cos^2 theta-4 sq...

If `0lethetale90^@` and `4 cos^2 theta-4 sqrt3 cos theta+3=0`, then the value of `theta` is
यदि `0lethetale90^@` और `4 cos^2 theta-4 sqrt3 cos theta+3=0` है, तो `theta` का मान क्या है?

A

A)`45^@`

B

B)`60^@`

C

C)`30^@`

D

D)`90^@`

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CHAMPION PUBLICATION-2014 TIER-II PAPER(19)-EXERCISE
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