Express the product as a sum containing only sines or cosines.cos 
cos 
A. 
[cos(2?) + cos(3?)]
B. 
cos2(5?)
C. 
[cos(6?) - sin(4?)]
D. 
[cos(3?) - sin(2?)]
Answer: A
Mathematics
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Choose the equation that matches the graph.
A. 16x2 - 9y2 = 144 B. 9x2 + 16y2 = 144 C. 9x2 - 16y2 = 144 D. 16x2 + 9y2 = 144
Mathematics
Perform the indicated operation.
?
?
A. 10111 two B. 1011 two C. 10110 two D. 1111 two E. 11010 two
Mathematics
Solve the problem.A piece of lumber needs to be cut 511 cm long. How many meters is this?
A. 5110 m B. 51,100 m C. 51.1 m D. 5.11 m
Mathematics
Simplify completely. If the fraction is improper, write it as a mixed number.
A. 1
B. 1
C. 
D. 2
Mathematics