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Statement-I: int (x+1)/(x(1+xe^(x))^(2))...

Statement-I: `int (x+1)/(x(1+xe^(x))^(2))dx=(1)/(1+xe^(x))+log |(xe^(x))/(1+ xe^(x))|+c` where c is a real number.
Statement-II: `(d)/(dx)(xe^(x))=(x+1)e^(x).`

A

Statement-I is True, Statement-II is True, Statement-II is a correct explanation for Statement-I

B

Statement-I is True, Statement-II is True, Statement-II is not a correct explanation for Statement-I

C

Statement-I is True, Statement-II is False.

D

Statement-I is False, Statement-II is True.

Text Solution

Verified by Experts

The correct Answer is:
A
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Knowledge Check

  • If int(xe^(x))/(sqrt(1+e^(x)))dx=f(x)sqrt(1+e^(x))-2log|g(x)|+c , then-

    A
    f(x)=x+1
    B
    `f(x)=2(x-2)`
    C
    `g(x)=(sqrt(1+e^(x))-1)/(sqrt(1+e^(x))+1)`
    D
    `g(x)=(sqrt(1+e^(x))+1)/(sqrt(1+e^(x))-1)`
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