Trig Board PCH class

Conversion (Radians to Degrees)

100

Convert 60° to radians

π/3

200

Convert 2π/3 radians to degrees

120°

300

Convert 210° to radians

7π/6

400

Convert 11π/6 radians to degrees

330°

500

Convert -3π/4 radians to degrees

-135°

Co-terminal angles

100

100: Find a positive coterminal angle for -90°

270°

200

Find a negative coterminal angle for 200°

-160°

300

Are 420° and 60° coterminal?

Yes

400

Find the smallest positive coterminal angle for -7π/3

5π/3

500

Find two coterminal angles (one positive, one negative) for π/4

9π/4 and -7π/4

Reference Angles

100

Find the reference angle for 240°

60°

200

Find the reference angle for 2π/3

π/3

300

Find the reference angle for -135°

45°

400

 Find the reference angle for 290°

70°

500

Find the reference angle for 13π/8

3π/8

Unit Circle

100

Find cos(π/4)

√2/2

200

Find sin(π)

0

300

Find tan(π/6)

√3/3 or 1/√3

400

Find sin(5π/3)

-√3/2

500

Find all values where cos(θ) = -1/2 (0 ≤ θ < 2π)

2π/3 and 4π/3

Right Triangle + Trig

100

Right triangle: angle = 30°, opposite side = 7. Find the hypotenuse

14

200

Right triangle: angle = 60°, adjacent side = 5. Find the opposite side

5√3

300

: Right triangle: angle = 45°, hypotenuse = 10. Find one leg

5√2

400

Simplify: cotβsecβcscβ

csc^2β

500

Simplify: cotΘ/ tanΘ

cot^2Θ