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If |{:(1+cos^2 theta, sin^2 theta, 2sqrt...

If `|{:(1+cos^2 theta, sin^2 theta, 2sqrt3tantheta),(cos^2 theta, 1+sin^2 theta, 2sqrt3tan theta),(cos^2 theta, sin^2 theta, 1+2sqrt3 tan theta):}|`=0 then `theta` may be :

A

`pi/6`

B

`(5pi)/6`

C

`(7pi)/6`

D

`(11pi)/6`

Text Solution

Verified by Experts

The correct Answer is:
B, D
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