Trig Review

cos 5π/6

• -1/2

• 1/2

• √3/2

• -√3/2

tan 7π/4

• -1

• 1

• √2/2

• undefined

cot 3π/4

• -√2/2

• -1

• 1

• √2/2

cot π/2

• undefined

• 0

• 1

• 1/2

tan (-π)

• undefined

• 0

• 1

• -1

What is the exact value of sin 7π/6

• 1/2

• -1/2

• √3/2

• -√3/2

What is the exact value of sin 2π/3

• 1/2

• -1/2

• √3/2

• -√3/2

Tangent is...

• a. Opposite/hypotenuse

• b. sine/cosine

• c. neither a or b

• d. both a and b

Convert to degrees: 4π/3

• 210°

• 225°

• 240°

• 250°

Convert to radians: 270°

• π/2

• π

• 3π/2

• 2π