1.

What is `int (l nx)/(x) dx` equal to ?A. `((l n x)^(2))/(2) + c`B. `((l nx))/(2) + c`C. `(l nx)^(2) + c`D. None of the above

Answer» Correct Answer - A
Let `I = int (l nx)/(x) dx`
Put `l n x = t`
`(1)/(x) dx = dt`
`:. I = int t dt = (t^(2))/(2) + c`
where c is the constant of integration
`= ((l nx)^(2))/(2) + c`


Discussion

No Comment Found

Related InterviewSolutions