Trig Reference Angles

Question 1

Sin (0)

Answer 1

0

Question 2

Sin (30)

Answer 2

1/2

Question 3

Sin (45)

Answer 3

√2/2

Question 4

Sin (60)

Answer 4

√3/2

Question 5

Sin (90)

Answer 5

1

Question 6

Cos (0)

Answer 6

1

Question 7

Cos (30)

Answer 7

√3/2

Question 8

Cos (45)

Answer 8

√2/2

Question 9

Cos (60)

Answer 9

1/2

Question 10

Cos (90)

Answer 10

0

Question 11

Tan (0)

Answer 11

0

Question 12

Tan (30)

Answer 12

√3/3

Question 13

Tan (45)

Answer 13

1

Question 14

Tan (60)

Answer 14

√3

Question 15

Tan (90)

Answer 15

Undefined

Question 16

Tan =

Answer 16

Sin/Cos

Question 17

When sin=0, csc is

Answer 17

Undefined

Question 18

When cos=0, sec is

Answer 18

Undefined

Question 19

π/6

Answer 19

30

Question 20

π/4

Answer 20

45

Question 21

π/3

Answer 21

60

Question 22

π/2

Answer 22

90

Question 23

2π/3

Answer 23

120

Question 24

3π/4

Answer 24

135

Question 25

5π/6

Answer 25

150

Question 26

π

Answer 26

180

Question 27

7π/6

Answer 27

210

Question 28

5π/4

Answer 28

225

Question 29

4π/3

Answer 29

240

Question 30

3π/2

Answer 30

270

Question 31

5π/3

Answer 31

300

Question 32

7π/4

Answer 32

315

Question 33

11π/6

Answer 33

330

Question 34

2π

Answer 34

360

Question 35

y=d+a sin b(x-c)

Answer 35

a= amplitude
If a is positive, curve is normal. If a is negative, curve is reversed.
If a is greater than 1, it is stretched. If a is less than 1, it is shrunk.

360/b=period
If the period is greater than 360, it is elongated. If the period is less than 360, it is compressed.

c=phase shift
If c is being added, phase shifts left. If phase is being subtracted, phase shifts right.

d=vertical translation
If d is positive, graph moves up. If d is negative, graph moves down.
Range of the function is [-a,a] with d added or subtracted when necessary