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Let the straight line x =b divide the ar...

Let the straight line x =b divide the area enclosed by `y=(1-x)^(2)` y=0 and x=0 in to parts `R_(1)(0 le x le b)` and `R_(2) (b le x le 1)` such that `R_(1)-R_(2)=1/4` then b equals

A

`3/4`

B

`1/2`

C

`1/3`

D

`1/4`

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The correct Answer is:
B
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