Question

How do find the exact value of arctan(tan -pi/8)?

Answer 1

the same applies here....

Answer 2

Really? How many trigonometric functions does it apply to? If I may ask.

Answer 3

hold on

Answer 4

Okay, thank you so much.

Answer 5

check out this one

Answer 6

Thank you! And if I may ask a quick question. What do you do when the function is something like cos(arcsin)?

Answer 7

cos(arc sin x) = sin(arc cos x) = sqr root (1-x^2) and

Answer 8

\[1\le x \le 1\]

Answer 9

Thank you! I really appreciate all the help!

Answer 10

anytime!!!