A line makes the same 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, then \cos ^2 \theta equals [AIEEE 2004]

AIEEE 2004 Math Solved Paper

Section: Mathematics

Question : 3 of 68

Marks: +1, -0

A line makes the same angle θ, with each of the x and z axis.
If the angle β, which it makes with y-axis, is such that sin‌2β=3sin‌2θ, then cos2θ equals

[AIEEE 2004]

‌
2
5
‌
1
5
‌
3
5
‌
2
3

Validate

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