Week 5/18 Trig Review

What is csc(x) equivalent to?

• 1/sin(x)
• 1/tan(x)
• sin(x)
• 1/cos(x)

Tags

CCSS.HSF.TF.A.4

sinθ is positive in

• the 1st and 2nd quadrants
• the 1st and 3rd quadrants
• the 1st and 4th quadrants
• the 2nd and 3rd quadrants

Tags

CCSS.HSF.TF.A.4

CCSS.HSF.TF.C.8

What are the negative and positive coterminal angles of -225°?

• 375°, -600°

• 125°, -356°

• 135°, -585°

• 60°, -120°

Tags

CCSS.HSF.TF.A.2

CCSS.HSF.TF.A.4

What is the reference angle for 63°?

• 117°

• 207°

• 63°

• 153°

Tags

CCSS.HSF.TF.A.3

CCSS.HSF.TF.C.8

In quadrant III (three):

• sinx < 0 ; cos x > 0; tan <0

• sinx > 0 ; cos x > 0; tan >0

• sinx < 0 ; cos x < 0; tan >0

• sinx > 0 ; cos x < 0; tan <0

Use the point $\left(\sqrt{7},-\sqrt{2}\right)\$ as the terminal side of an angle to find  $\sin\left(\theta\right)$  .

•  $-\frac{\sqrt{2}}{9}$  

•  $-\frac{\sqrt{2}}{3}$  

•  $\frac{\sqrt{7}}{9}$  

•  $\frac{\sqrt{7}}{3}$  

 $Find\ \csc\left(\theta\right)$  

•  $\frac{1}{2}$  

•  $2$  

•  $\frac{2}{\sqrt{3}}$  

•  $\frac{\sqrt{3}}{2}$  

What angle is drawn?

• 23⁰
• 67⁰
• 383⁰
• 427⁰

What is  $\cos\left(\frac{\pi}{3}\right)$  ?

• $\frac{1}{2}$

• $\frac{\sqrt{3}}{2}$

• $\frac{2\sqrt{3}}{3}$

• 2

If sin(A) = $\frac{1}{2}$ , what is the value of A? 

•  $\frac{7\pi}{6}$  

•  $\frac{2\pi}{3}$  

•  $\frac{\pi}{3}$  

•  $\frac{\pi}{6}$