If y=1/(1+x^(n-m)+x^(p-m))+1/(1+x^(m-n)+...

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

A

1

B

0

C

`m+n+p`

D

`m-n+p`

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The correct Answer is:

B

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APPLICATION OF DERIVATIVES
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