## anonymous 5 years ago inverse tan of tan 240 degrees? i have no idea how to do this, its calculus I

1. anonymous

$\tan^{-1} (\tan(3\pi/4)$

2. bahrom7893

I think inverse tangent of tangent is the number itself lol

3. bahrom7893

4. bahrom7893

the teacher wants u to learn how to treat inverses...

5. bahrom7893

F^-1 ( F ( X ) ) = X

6. bahrom7893

Please click on become a fan if I helped, I really want to get to the next level!! Thanks =)

7. anonymous

that's so stupid the book has the wrong answer, thank you, i got the rest i thought maybe tan was different

8. anonymous

i did!