- #1

- 12

- 0

I'm having real troubles with this; I tried a substitution of [tex]u=x+t[/tex] but it just ends up as,

[tex]t=\tan{u} + \csc{u} + C[/tex]

And I can't see where to go from there. (the middle function is cosec; it didn't come out very clearly on my screen).