- #1
lemurs
- 30
- 0
kay I am having difficulties with this..
Knowing the gerneral formuala of
|uv'=uv- |vu'
i using a nonehomework question i was trying to make sure i had it down pat was having problems..
| x cos 5x dx
but for some reason i don't get the right answer when it done...
If I have u=x, du=1
and
v'=cos 5x dx
v= 1/5 sin5x? or did i crew up some where I been having trouble here ..
so i can do the substion and all but this stuff is screwing with help please.
Knowing the gerneral formuala of
|uv'=uv- |vu'
i using a nonehomework question i was trying to make sure i had it down pat was having problems..
| x cos 5x dx
but for some reason i don't get the right answer when it done...
If I have u=x, du=1
and
v'=cos 5x dx
v= 1/5 sin5x? or did i crew up some where I been having trouble here ..
so i can do the substion and all but this stuff is screwing with help please.