Trig Functions of any Angle

Let (12,-5) be a point on the terminal side of θ.

What is Cos ø?

• 13/12

• 12/13

• -5/13

• -5/12

Let (3,4) be a point on the terminal side of θ. What is sec ø?

• 4/3

• 3/4

• 5/3

• 2/3

let (-3,-3) be a point on the terminal side of θ.

What is cot θ?

• 1

• 2

• 3

• Not me

Find the value of sin $\theta$ given the point

 $\left(2,\ -\sqrt{5}\right)$  

•  $-\frac{\sqrt{10}}{3}$  

•  $-\frac{3\sqrt{10}}{10}$  

•  $\frac{\sqrt{10}}{10}$  

•  $-\frac{\sqrt{5}}{3}$  

cosθ is positive in

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

sinθ is positive in

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

What is the reference angle for -30°?

• 150°

• 30°

• 80°

• 60°

What is the reference angle for 125°?

• 235°

• 125°

• 75°

• 55°

What is the reference angle for 240°?

• 60°

• 30°

• 45°

• 210°