Question #36feb

1 Answer
Apr 3, 2017

int (2x-3)/(x-1) = 2x-ln abs(x-1)+C

Explanation:

Write the integrand function as:

(2x-3)/(x-1) = 2( (x-3/2)/(x-1)) = 2( (x-1-1/2)/(x-1)) = 2 - 1/(x-1)

So:

int (2x-3)/(x-1) = int (2 - 1/(x-1))dx

and using the linearity of integrals:

int (2x-3)/(x-1) = 2 int dx - int dx/(x-1) = 2x-ln abs(x-1)+C