If a line makes an angle \alpha, \beta, \gamma with the ...

CBSE Class 12 Math 2022 (Term II) Delhi Set 1 Solved Paper

Question : 5 of 14

Marks: +1, -0

If a line makes an angle

α, β, γ

with the coordinate axes, then find the value of

\cos 2 α+\cos 2 β+\cos 2 γ

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