Express the product as a sum containing only sines or cosines.sin 
cos 
A. 
[cos (6?) + sin (5?)]
B. 
[cos (12?) - sin (10?)]
C. 
sin cos (11?)
D. 
[sin (6?) - sin (5?)]
Answer: D
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Find the volume of the solid generated by revolving the region about the given line.The region in the first quadrant bounded above by the line y = 4x3, below by x-axis, and on the right by the line x = 1, about the line y = - 1
A. 
?
B. 
?
C. 
?
D. 
?
Solve the problem.Bob owns a watch repair shop. He has found that the cost of operating his shop is given by 
where c is cost and x is the number of watches repaired. How many watches must he repair to have the lowest cost?
A. 29 watches B. 40 watches C. 20 watches D. 59 watches
Evaluate the function f(x) = [[x]] for x = 9.2. ?
A. ?f(x) = 2 B. ?f(x) = 10 C. ?f(x) = 9 D. ?f(x) = -9 E. ?f(x) = 11
Find the standard form of the complex number 
.
?
A. ?8
- 8i
B. ?-4 + 4i
C. ?4 - 4i
D. ?-8 + 8i
E. ?4 + 4i