This is what I have so far, but I am aware it is wrong. Could someone tell me where it goes wrong please:
int(1/sin(x)dx
u = sin(x)
du/dx = cos(x)
dx/du = 1/cos(x)
int(1/sin(x) dx = int((1/u)du.(dx/du)) = ln(u).(1/cos(x)) = (ln(sin(x)))/cos(x)
Any help would be appreciated.