HPC Lesson 7-1 to 7-3 Review

positive (P), negative (N), or zero (0)

 $\cos\ \frac{3\pi}{2}$  

• P

• N

• 0

positive (P), negative (N), or zero (0)

 $\sin-\frac{5\pi}{6}$  

• P

• N

• 0

positive (P), negative (N), or zero (0)

 $\cos\ \frac{5\pi}{4}$  

• P

• N

• 0

positive (P), negative (N), or zero (0)

 $\sin\frac{5\pi}{6}$  

• P

• N

• 0

state <, >, or =.

 $\sin\ 225\degree\ \ ?\ \ \sin\ 135\degree$  

• <

• >

• =

state <, >, or =.

 $\sin\ 121\degree\ \ ?\ \ \sin\ 178\degree$  

• <

• >

• =

state <, >, or =.

 $\tan\ 60\degree\ \ ?\ \ \tan\ 240\degree$  

• <

• >

• =

state <, >, or =.

 $\sin\left(-300\right)\degree\ \ ?\ \ \cos\left(-300\right)\degree$  

• <

• >

• =

 $Solve\ \sin\theta=0\ for\ all\ values\ over\ the\ interval\ 0\le\theta<2\pi$  Select all that apply

• 0

•  $\pi$  

•  $\frac{\pi}{2}$  

•  $\frac{3\pi}{2}$  

 $If\ \sin\theta=-\frac{5}{13}\ and\ \theta\ is\ in\ quadrant\ III,\ then\ \cos\theta=$  

(a)