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Co - ordinate Geometry 3D Geometry

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If a line makes the angle α,β,γ with three dimensional co-ordinate axes respectively, then cos2α + cos2β + cos2γ =

A. -2

B. -1

C. 1

D. 2

E. None of the above

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Correct choice: B

Explanation:

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Eamcet Mathematics Co - ordinate Geometry 3D Geometry

Eamcet Mathematics
Co - ordinate Geometry 3D Geometry