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If (d)/(dx)f(x)=g(x) for a le x le b th...

If `(d)/(dx)f(x)=g(x)` for `a le x le b` then, `overset(b)underset(a)int f(x) g(x) dx` equals

A

`g(b) - g(a)`

B

`f(b) -f(a)`

C

`((f(b) )^(2) - (f(a))^(2) ) /(2)`

D

`((g(b))^(2) -(g(a))^(2) )/( 2)`

Text Solution

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The correct Answer is:
C
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