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Let a gt 0 and f(x) is monotonic increa...

Let `a gt 0 and f(x) ` is monotonic increase such that `f(0)=0 and f(a)=b, "then " int_(0)^(a) f(x) dx +int_(0)^(b) f^(-1) (x) dx ` is equal to

A

`a+b`

B

`ab+b`

C

`ab+a`

D

ab

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The correct Answer is:
D
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