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If x^my^n = (x + y)^(m+n), then (dy/dx)(...

If `x^my^n = (x + y)^(m+n)`, then `(dy/dx)_(x=1, y=2)` is equal to

A

` (2m)/(n)`

B

` (m)/( 2n )`

C

` 2`

D

` (1)/(2)`

Text Solution

Verified by Experts

The correct Answer is:
C
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