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I=int (dx)/(""^(4)sqrt( (x-1) ^(3) (x+2)...

`I=int (dx)/(""^(4)sqrt( (x-1) ^(3) (x+2)^(5)))=k ""^(4)sqrt((x-1)/(x+2))+C,` then 'k is equal to:

A

`1/3`

B

`2/3`

C

`3/4`

D

`4/3`

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The correct Answer is:
D
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