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If x^3y^9=(x+y)^k and x(dy)/(dx)=y then ...

If `x^3y^9=(x+y)^k` and `x(dy)/(dx)=y` then k =

A

a)10

B

b)11

C

c)12

D

d)none of these

Text Solution

Verified by Experts

The correct Answer is:
C
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