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If `vec(A)` makes an angle `alpha, beta` and `gamma` from x,y and z axis respectively then `sin^(2)alpha+sin^(2) beta+sin^(2) gamma=` |
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Answer» Correct Answer - 3 `cos^(2) alpha+cos^(2) beta+cos^(2)gamma=1` `1-sin^(2) alpha+1-sin^(2) beta+1-sin^(2) gamma=1` `sin^(2) alpha+sin^(2) beta +sin^(2) gamma=2` |
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