Question
If x = r sin A cos B, y = r sin A sin B and z = r cos A, then find x² + y² + z².
More Trigonometry Questions
- If 6sin²x + 2cos²x − 3 = 0, then find the value of sinx, given that 0° < x < 90°.
- If sin 2a = (3/4), then find the value of (sin a + cos a).
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- If sec A + tan A = (5/2) and sec A - tan A = (2/5), find the value of cos A.
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- If (sinθ+cosθ)/(sinθ-cosθ) = 2, then the value of sin4 θ is
- If sin (a + b) = (√3/2) and cos (a – b) = (√3/2), then find sin a.
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