Perform the indicated operation.
+ 
A. 
B. 
C. 
D. 
Answer: C
Mathematics
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Identify the equation as either an identity or not.cos2x - sin2x = 1 - 2 sin2x
A. Not an identity B. Identity
Mathematics
Solve the problem.Use the graphs to find the value of (fg)(1).
A. 2 B. 3 C. 4 D. 6
Mathematics
Answer the question.A retailer finds that total costs per day are given by c = 121
+ 196, where c is cost and n is units sold. What is c when no units are sold?
A. $1694 B. $317 C. $154 D. $196
Mathematics
Find the area of the indicated region.
?
Enclosed by 
and 
.
?
A. 
B. 18
C. 9
D. 
E. 
Mathematics