Express the product as a sum or difference.cos 6x cos 5x
A. 
(cos x + cos 11x)
B. cos2 30x2
C. 
(cos 11x - sin x)
D. 
(cos 11x - cos x)
Answer: A
Mathematics
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Convert the decimal number to the given base.68 to base eight
A. 120eight B. 104eight C. 140eight D. 102eight
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Use the graph of f to sketch a graph of the inverse of f using a dashed curve.
A. 
B. 
C. 
D. 
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Evaluate the expression for the given replacement values.(x + 4y)2 for x = 4, y = 3
A. 64 B. 256 C. 16 D. 32
Mathematics
Write out all the terms of the series.
A. -x - 4x2 - 9x3 - 16
B. -x + 
- 
+ 
C. -x - 
- 
- 
D. -x + 
- 
+ 
Mathematics