Just directly apply integration by parts starting with:
Then use the fact that:
sorry i knew the forumla just didnt know how to type it using the latex thing. i have multiplied them together and dont know how to proceed...
on the right hand side i get...
x^(n+1) / x(n+1)
i know that the x's cancel out but then how do i integrate the restt?? and how do i simplify the left hand side?
yes i know that. although i dont know WHY...so i was just looking for the working for that...i cant seem to get around it. therefore because of the factor that was taken out before....would it just be (x^(n+1)) / (n+1)^2 ????
therefore the full answer would be....
ln(ax) . (x^(n+1)) / (n+1) - (x^(n+1))/ (n+1)^2
?? am i correcT?