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If int x^(6) sin (5x^7)dx=(k)/(5)cos (5x...

If `int x^(6) sin (5x^7)dx=(k)/(5)cos (5x^7), x ne 0`, then :

A

`k=7`

B

`k=-7`

C

`k=(1)/(7)`

D

`k=(-1)/(7)`

Text Solution

Verified by Experts

The correct Answer is:
D
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