Question

u subsitution

Answer 1

\[\int\limits_{}^{}\frac{ 40 dx }{ x^2+25 }\]

Answer 2

@zepdrix

Answer 3

No U-sub for this one I'm afraid :( Have to do a trig-sub.

Answer 4

i got \[\frac{ -40 }{ x+5 }+c\]

Answer 5

The integral will give you an answer which involves arctangent. You have to use a Trig-Sub to solve it because of the square in the bottom.

If there was an X in the top somewhere, we could do a U-sub.

Answer 6

Is it suppose to be 40x dx on top?

Answer 7

nope

Answer 8

darn :c