Question

find the indefinite integral of 9/2x+1

Answer 1

?

Answer 2

Or is it
\[\int\limits \frac{9}{2x+1}dx\]

Answer 3

YES that is the question.

Answer 4

You can integrate it directly, or by substituting u=2x+1

Answer 5

When
\[u=2x+1 \]
\[du=2dx\]
\[\frac{du}{2}=dx\]
\[\int\limits\limits \frac{9}{2x+1}dx\]
\[\int\limits\limits \frac{9}{u}\frac{1}{2}du\]
\[\frac{9}{2} \int\limits \frac{1}{u}du\]
Then finish it up

Answer 6

Thanks got it, and finished it off . Much appreciated.

Answer 7

Alright gl :)