ahhh well, then your substitution will work and
Follow Math Help Forum on Facebook and Google+
0_0.... it's so simple. -sqrt(9-x^2) +C
thanks so much for your help. do you mind if i ask another question?
i have to have the int of sec (x/2)
am I on the right track?
t dt= -1/2sin(x/2)
no, that substitution won't work.
that integral is tricky, first put so that you only care about integrating
we have and then put
you might have to walk me through that one. I understand t dt= sec(t)tan(t), where did the rest of that come from?
View Tag Cloud