A line makes some angle theta, with each...

A line makes some angle `theta`, with each of the x and z-axis. If the angle `beta`, which it makes with y-axis, is such that `sin^2 beta =3 sin^2 theta , the cos^2 theta` equals:

A

(a) `(1)/(5)`

B

(b) `(2)/(5)`

C

(c) `(3)/(5)`

D

(d) `(2)/(3)`

Verified by Experts

The correct Answer is:

(c)

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