ohk i think my original post was incorrect...i believe it should be and not so in regards to this correction am i now anywhere near the answer?
Also you're attached picture didn't come out too well (no offence) but I couldn't see anything. so i went to the wolfram site and plugged in the corrected question and i'm still wrong... the wolfram site doesn't show step - by - step on how to do this question. Could you show me how, oh mighty Mr. Fantastic ?
Integrate the first term by making the substitution .
Integrate the second term by recognising a standard form - you get .
This is easily proved by making the substitution . The reason for the substitution should be obvious in hindsight after differentiating with respect to x.
This is a special case of the more general result .