# Questions on trig

Reduce sin(60° + θ) − sin(60° − θ) to a single function of one angle.

a.

b. c.

d.

What is another identity you would use to convert the RHS: ? a.

b.

c. d.

____ 3.

Given:

Find the values of the following:

a.

b.

c.

d. 3

, angle A is in Quadrant III and angle B is in Quadrant I.

____ 4.

What are the extreme values of y = sin (x + )?

a.

b. 1and–1

and –

c.

d. .75 and –.75

What is the best identity you could use to convert the LHS: ? a.

b. c. d.

Evaluate 2 sin 67.5° cos 67.5°. What is the second step equal to?

a. sin 2(67.5°) b.

c. cos 2 (67.5°) d.

and –

____ 5.

____ 6.