If α, β, γ are the angles which a directed line – makes with the positive directions of the co-ordinate axes, t

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Q 1237312282.     If α, β, γ are the angles which a directed line – makes with the positive directions of the co-ordinate axes, then sin^2 α + sin^2 β + sin^2 γ is equal to
A

2//3

B

3//2

C

3

D

2

#### HINT

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