If alpha, beta, gamma are the angles whi...

If `alpha, beta, gamma` are the angles which a line makes with the coordinate axes ,then (A) `sin^2alpha=cos^2beta+cos^2gamma` (B) `cos^2alpha+cos^2beta+cos^2gamma=2` (C) `cos^2alpha+cos^2beta+cos^2gamma=1` (D) `sin^2alpha+sin^2beta=1+cos^2gamma`

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If `alpha, beta, gamma` are the angles which a line makes with the coordinate axes ,then (A) `sin^2alpha=cos^2beta+cos^2gamma` (B) `cos^2alpha+cos^2beta+cos^2gamma=2` (C) `cos^2alpha+cos^2beta+cos^2gamma=1` (D) `sin^2alpha+sin^2beta=1+cos^2gamma`

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