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The value of theta lying between theta=0...

The value of `theta` lying between `theta=0` and `theta=pi/2` and satisfying the equation `|[1+sin^2theta,cos^2theta,4sin4theta],[sin^2theta,1+cos^2theta,4sin4theta],[sin^2theta,cos^2theta,1+4sin4theta]|=0` are

A

`pi//24, 5pi//24`

B

`7pi//24,11pi//24`

C

`5pi//24,7x//24`

D

`11pi//24,pi//24`

Text Solution

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The correct Answer is:
B
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