यदि x = a cos theta cos Phi, y = a cos t...

यदि `x = a cos theta cos Phi, y = a cos theta sin Phi ` और `z = a sin theta` हो तो ,`x^2 + y^2 + z^2` का मान क्या है ?

A

`2a^2`

B

`4a^2`

C

`9a^2`

D

`a^2`

लिखित उत्तर

Verified by Experts

The correct Answer is:

D

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