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If u=log sqrt(x^(2) + y^(2)), then (del^...

If `u=log sqrt(x^(2) + y^(2))`, then `(del^(2) u)/(del x^(2)) + (del^(2)u)/(del y^(2))` is

A

`sqrt(x^(2) + y^(2))`

B

0

C

u

D

2u

Text Solution

Verified by Experts

The correct Answer is:
B
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