9.3: Trigonometric Functions of Any Angle (Audrey, Kaitlyn, Sweety) Flashcards

1

Evaluate Sin θ when θ =\frac{7\pi }{2}

Sin θ = -1
Undefined
Sin θ = 0
Sin θ = 1

2

What is the reference angle for 275\degree

-95\degree
95\degree
85\degree
-85\degree

3

Evaluate tan \frac{3}{5\pi}

-2\sqrt{3}
-1\sqrt{3}
-\sqrt{\frac{3}{2}}
-\sqrt{3}

4

Evaluate Tan θ when θ =\frac{7\pi }{2}

Tan θ = -1
Tan θ = 1
Undefined
Tan θ = 0

5

Evaluate cos\pi

-1
0
Undefined
1

6

Identify the point where the terminal side of θ intersects the unit circle when θ = \frac{7\pi}{2}

(-1,0)
(0,1)
(1,0)
(0,-1)

7

Cot θ is the reciprocal of Sin θ

True
False

8

The Y coordinate is Sin θ and X coordinate is Cos θ

True
False

9

What do you call the angle at standard position?

θ
Right angle
Angle 1
Standard angle

10

What is another way to call the 6 functions of trigonometry?

Circular functions
Right angles
Sin functions
θ functions

11

How many functions are there in trigonometry?

5
7
3
6

12

Where does θ intersect the circle?

Sin θ
(y,x)
at the intersection point
(x,y)

13

What is the reference angle for \frac{2\pi}{3}

\frac{4\pi}{3}
\frac{\pi}{4}
\frac{\pi}{3}
\frac{7\pi}{6}

14

What is a unit circle?

A circle with a radius of 1 and a center of (0,1)
A circle with a radius of 1 and a center of (0,0)
A circle with a radius of 0.5 and a center of (0,1)
A circle with a radius of 0.5 and a center of (0,0)

15

Evaluate csc \frac{3\pi}{4}

-\sqrt{2}
\sqrt{2}
-\sqrt{\frac{2}{2}}
\sqrt{\frac{2}{2}}

16

What is the value of r if (4,-3) is given?

5
1
4
-3

17

Evaluate Cos θ when θ =\frac{7\pi }{2}

Undefined
Cos θ = 1
Cos θ = 0
Cos θ = -1

18

Evaluate sec (120\degree)

-1/2
-2
2
1/2

9.3: Trigonometric Functions of Any Angle (Audrey, Kaitlyn, Sweety)

Questions 18

9.3: Trigonometric Functions of Any Angle (Audrey, Kaitlyn, Sweety)

Questions 18