a. cos 30° = √3/2 Use your graph in question 1 to find another value of θ for which cos θ = √3/2

b. tan 60° = √3. Use your graph in question 2 to find other values of θ for which:

i. tan θ = √3 

ii. tan θ = −√3

c. sin 45° = 1/√2 Use your graph in question 3 to find other values of θ for which:

i. sin θ = 1/√2

ii. sin θ = − 1/√2