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If x=r cos alpha cos beta cos gamma , y...

If `x=r cos alpha cos beta cos gamma , y= cos alpha cos beta sin gamma , z= r sin alpha cos beta , mu = r sin beta " then " x^(2)+y^(2) + z^(2)+mu^(2)=`

A

r

B

2r

C

`r^(2)`

D

`4r^(2)`

Text Solution

Verified by Experts

The correct Answer is:
C
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