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If u=log (x^(3) + y^(3) +z^(3) - 3xyz), ...

If `u=log (x^(3) + y^(3) +z^(3) - 3xyz)`, then `(del u)/(del x) + (del u)/(del y) + (del u)/(del z)=`

A

`3/(x+y+z)`

B

x+y+z

C

`-9/(x+y+z)^(2)`

D

0

Text Solution

Verified by Experts

The correct Answer is:
A
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