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If a line in the space makes angles alph...

If a line in the space makes angles `alpha,beta` and `gamma` with, the coordinate axes, then `cos2alpha+cos2beta+cos2gamma+sin^2alpha+sin^2beta+sin^2gamma` equals

A

`-1`

B

0

C

1

D

2

Text Solution

Verified by Experts

The correct Answer is:
C
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