Rewrite the expression as an equivalent expression that does not contain powers of trigonometric functions greater than 1.f(x) = cos3 x

A. cos x -  cos 3x
B. cos x +  cos 3x + cos 2x
C. cos x +  cos 3x
D. cos x -  cos 3x - cos 2x

Answer: C

Mathematics

Simplify the expression. Assume that variables can represent any real number.

A. 2xy²
B. 2xy²
C. 3xy²
D. 2x³y⁶

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Mathematics

Simplify the algebraic expression.-15x3 - 12x3

A. -27x6 B. -28x3 C. -27x3 D. -27x9

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Mathematics

Predict the general, or nth term, an, of the sequence.8, 24, 40, 56, 72, . . .

A. 16n - 8 B. an = 8n - 16 C. an = 16n - 2 D. an = 8(16)n - 1

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Mathematics

Find the slope of the line through the given pair of points.(, -2) and (0.44, -2)

A. - 0.44
B. 0.44 -
C. 0
D. undefined

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Mathematics