If a line makes angles α,β, and γ with the coordinate axes x,y, and – InterviewSolution

1.	If a line makes angles α,β, and γ with the coordinate axes x,y, and z respectively, then the value of cos2α+cos2β+cos2γ is ______
Answer» If a line makes angles $α, β,$ and $γ$ with the coordinate axes $x, y,$ and $z$ respectively, then the value of ${cos}^{2} α + {cos}^{2} β + {cos}^{2} γ$ is ______

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