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Q 2866012875.     A line makes the same angle `alpha` with each of the
X and Y-axes. If the angle `theta`, which it makes with
the Z-axis, is such that `sin^2 theta = 2 sin^2 alpha `, then
what is the value of `alpha` ?
(Provided By a Student and Checked/Corrected by EXXAMM.com Team)