Express the sum or difference as a product of sines and/or cosines.cos(10?) - cos(4?)
A. 2 cos(7?) cos(3?)
B. 2 cos(3?)
C. -2 sin(7?) sin(3?)
D. -2 cos(7?) sin(3?)
Answer: C
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Simplify the factorial expression.
A. 3! B. 1 C. (n + 2)! D. n + 3!
Use the Fundamental Counting Principle to solve the problem.There are 4 performers who are to present their acts at a variety show. How many different ways are there to schedule their appearances?
A. 4 B. 16 C. 24 D. 12
Find the second derivative of the function.y = 
A. 
= 
+ 
B. 
= - 
- 
C. 
= 
+ 
D. 
= - 
- 
Graph the radical function. Compare the graph to that of the square root function or cube root function.F(x) = 
- 5
A. It looks like the graph of the square root
function, but it is shifted 5 units up.
B. It looks like the graph of the square root
function, but it is shifted 5 units to the right.
C. It looks like the graph of the square root
function, but it is shifted 5 units down.
D. It looks like the graph of the square root
function, but it is shifted 5 units to the left.