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

(a) `(7pi)/(24)or(11pi)/(24)`

B

(b) `(5pi)/(24)`

C

(c) `(pi)/(24)`

D

(d) `(7pi)/(6)`

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The correct Answer is:

A

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