HW 2-2 Answers
sin(x)
√
1.
cos(x)
tan(x)
√
csc(x)
sec(x)
√
2.
√
√
√
3.
cot(x)
√
√
√
√
√
√
4.
#5-12 you will have to try on your own… or with a classmate.
Here are some helpful hints if you get stuck:
13.

Use your identities on #5-12 and put everything in terms of sine and cosine. Any
factors with more than one term (e.g.,
) you should use your Pythagorean
Identities to re-write them so that they are only one term (e.g.,
).

On #11 you will need to factor (it’s a difference of two squares!).
14.