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If y = (1)/(1+x^( p-r) +x^(q-r)) +(1)/( ...

If y = `(1)/(1+x^( p-r) +x^(q-r)) +(1)/( 1+ x^(p-q) +x^(r-q) )+ (1) /( 1+x^(q-p) +x^(r-p)),then (dy)/(dx) =`

A

` x^(p+q+r)`

B

` x^(p+q+r-1)`

C

1

D

0

Text Solution

Verified by Experts

The correct Answer is:
D
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