A line makes acute angles α,β,γ with the coordinate axes such that – InterviewSolution

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1.	A line makes acute angles α,β,γ with the coordinate axes such that cosαcosβ=cosβcosγ=29 and cosγcosα=49, then the value of cosα+cosβ+cosγ is:
Answer» A line makes acute angles $α, β, γ$ with the coordinate axes such that $cos α cos β = cos β cos γ = \frac{2}{9}$ and $cos γ cos α = \frac{4}{9},$ then the value of $cos α + cos β + cos γ$ is:

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