Q.27 integral calculus answer fast ................

Question

Aditya Gupta · Answer

let y=f-1(x) so that x=f(y) or dx=f’(y)dy. so when x=a, y=b and x=0, y=0 so, we have to find P= ∫0toa f(x)dx+∫0toa yf’(y)dy apply integration by parts on the second integral, so that P= ∫0toa f(x)dx+ yf(y)|0toa – ∫0toa f(y)dy =af(a) – 0 = ab

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Q.27 integral calculus answer fast ................

Q.27 integral calculus answer fast ................

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