Sum and Difference Formulas

Question 1:

1 pts

Which identity is this?

Question 2:

1 pts

Which identity is this?

	The sine of angle alpha plus angle beta.
	The sine of angle alpha minus angle beta.
	The cosine of angle alpha plus angle beta.
	The tangent of angle alpha plus angle beta.

Question 5:

2 pts

Use the angle sum identity to find the exact value of


	none of these

Question 6:

2 pts

and

then find the value of

Question 7:

2 pts

and

then find the value of

Question 8:

2 pts

Use the angle difference identity to find

Question 9:

3 pts

Simplify the expression.

Question 10:

3 pts

Simplify the expression.

Question 11:

3 pts

Simplify the expression.

Question 12:

3 pts

and

find

Angle Measurement