If the area (in sq. units) of the region...

If the area (in sq. units) of the region `{(x,y):y^(2)le 4x, x+y le 1, x ge 0, y ge 0}` is `a sqrt(2) +b`, then `a-b` is equal to :

A

`6`

B

`-2/3`

C

`8/3`

D

`10/3`

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The correct Answer is:

A

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