Express the product as a sum or difference.cos 3x cos 2x

A. (cos x + cos 5x)
B. (cos 5x - cos x)
C. (cos 5x - sin x)
D. cos2 6x2


Answer: A

Mathematics

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6.722 to the nearest hundredth

A. 6.72 B. 6.722 C. 6.73 D. 6.71

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For the given polar equation, write an equivalent rectangular equation.r = 5

A. x + y = 25 B. x2 + y2 = 25 C. x + y = 5 D. x2 - y2 = 25

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Write any percent as a decimal and any decimal as a percent.Only 0.2% of those polled had heard the news.

A. 0.0002 B. 0.02 C. 0.002 D. 0.2

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Find the solution(s) (if any) of the system of equations by the graphical method. If the equations are dependent, write your answer with x being arbitrary.

A. {(44)}
B. inconsistent
C.
D. {(-44)}

Mathematics