InterviewSolution
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If the three plane x = y sin psi+ z sin phi, y = z sin theta + x sin psi, z = x sin phi + y sin theta, intersect in a line, then where theta, phi in (0, (pi)/(2)) theta , phi & psi satisfy |
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Answer» `sin ^(2) theta + sin ^(2) PHI + sin ^(2) psi =1` |
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