Let a line make an angle \\theta with { X } and { Z } -axis and \\beta with { Y } -axis. If \sin \\beta= \\sqrt { 3 } \sin \\theta , then \cos ^ { 2 } \\theta =

AP and TS EAMCET Engineering Model Paper 5

Question : 49 of 160

Marks: +1, -0

Let a line make an angle θ with X and Z -axis and β with Y -axis. If sin‌β=√3‌sin‌θ, then cos2θ=

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