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If x=r sinAcosC, y=rsinAsinC and z=rcosA, Prove that r^2=x^2+y^2+z^2 (CBSE Class 10-12 Kishan Swaroop Yadav) View |
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If x = r sin A cos C, y = r sin A sin C and z = r cos A, then prove that x^2+y^2+z^2 = r^2. (2Pi classes) View |
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L-9, Q7 If x +1/x = 2 cos θ , T.P (i) xⁿ +1/xⁿ = 2cos nθ (ii) xⁿ − 1/xⁿ = ±2 ι sin nθ (Graduation Learning) View |
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Find the value Sin(7π/4)Sin(π/4)Sin(3π/4)Sin(5π/4) (GOLDEN DOUBTS) View |
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