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Q 1337523482.
A line makes angle `theta` with `x` and `z` axis. If it makes angle `beta` with `y` axis, where `sin^2 beta=3sin^2theta`, then `cos^2 theta=`?
A
`frac{2}{3}`
B
`frac{1}{5}`
C
`frac{3}{5}`
D
`frac{2}{5}`
HINT
Solution
(Provided By a Student and Checked/Corrected by EXXAMM.com Team)
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