Write the product as a sum or difference of trigonometric functions.2 sin 8x sin 17x
A. cos 9x - cos 25x
B. cos 25x + cos 9x
C. 
(cos 25x + cos 9x)
D. sin 25x + sin 9x
Answer: A
Mathematics
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A. 3
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B. 33
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C. 
%
D. 
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Shade the region(s) that represents the set described.(A' ? B) ? C
A. 
B. 
C. 
D. 
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Decide what number must be added to the binomial to make a perfect square trinomial.x2 + 
x
A. 
B. 
C. 
D. 
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Find the distance s covered by a point moving with linear velocity v for a time t if
?
ft/sec and 
sec
?
A. 60 ft B. 70 ft C. 69.2 ft D. 80 ft E. 98.9 ft
Mathematics