Warmup Answer Key:
1.
\[\sin x = \frac7{\sqrt{58}} ; \cos x = -\frac3{\sqrt{58}} ; \tan x = -\frac73\]
\[\csc x = \frac{\sqrt{58}}7 ; \sec x = -\frac{\sqrt{58}}3 ; \cot x = -\frac37\]
2.
\[ -\frac2{\sqrt3} \]
3.
\[ a \]
4a.
\[ -b \]
4b.
\[ -b \]
4c.
\[ \frac{-a}{b} \]
5. a)
\[ x = 0.73, 2.41, \frac{3\pi}2\]
