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If u=x^(y) + y^(x), then u(x) + u(y) at ...

If `u=x^(y) + y^(x)`, then `u_(x) + u_(y)` at x=y=1 is

A

0

B

2

C

1

D

`infty`

Text Solution

Verified by Experts

The correct Answer is:
B
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