UNIT CIRCLE + CONVERSION

Question 1

In the 1st quadrant, the following angles are positive:

Answer 1

1. sin
2. cos
3. tan
4. csc
5. sec
6. cot

Question 2

In the 2nd quadrant, the following angles are positive:

Answer 2

1. sin
2. csc

Question 3

In the 3rd quadrant, the following angles are positive:

Answer 3

1. tan
2. cot

Question 4

In the 4th quadrant, the following angles are positive:

Answer 4

1. cos
2. sec

Question 5

Degrees -> Radians

Answer 5

(# of degrees / 360 degrees) x 2(pi)

Question 6

Radians -> Degrees

Answer 6

(# of radians / 2(pi)) x 360 degrees

Question 7

arc length

Answer 7

theta x radius

Question 8

radius

Answer 8

arc length / theta

Question 9

special angles

Answer 9

30, 45, 60

Question 10

quadrantal angles

Answer 10

0, 90, 180, 270, 360

Question 11

smallest positive value

Answer 11

alpha

Question 12

angle whose terminal side lies on either the x-axis or y-axis

Answer 12

quadrantal

Question 13

Coterminal angles who share the same ______ and _____ side

Answer 13

initial, terminal

Question 14

Coterminal angles are found by __________ or __________ (_____ or _____) to an angle.

Answer 14

adding, subtracting, 360 deg, 2pi