Use identities to solve each of the following. See Examples 5–7. Find cos θ, given that...

Use identities to solve each of the following. See Examples 5–7.

Find cos θ, given that sin θ = and θ is in quadrant II.

(Reference Example 5)

Suppose that angle θ is in quadrant II and sin θ = . Find the values of the other five trigonometric functions.

(Reference Example 6)

Find sin u and tan θ, given that cos θ = and sin θ > 0.

(Reference Example 7)

Find sin u and cos θ, given that tan θ = and θ is in quadrant III.