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Let vecr=xveci+yvecj+zveck be the positi...

Let `vecr=xveci+yvecj+zveck` be the position vector of any point and let`alpha,beta,gamma` be the direction angle of `vecr` then `sin^(2)alpha+sin^(2)beta+sin^(2)gamma` is:

A

-2

B

0

C

2

D

1

Text Solution

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The correct Answer is:
C
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PREMIERS PUBLISHERS-Vector Algebra -I-Choose Correct Option
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