Use a sum-to-product identity to rewrite the expression.cos 8s - cos 3s

A. -2 sin(5.5s) sin(2.5s)
B. 2 sin(5.5s) cos(2.5s)
C. 2 cos(5.5s) cos(2.5s)
D. -2 cos(5.5s) sin(2.5s)


Answer: A

Mathematics

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Find the indicated term for the geometric sequence.4, 12, 36, . . . ; a13

A. 708,588 B. 531,441 C. 2,125,764 D. 19,131,876

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Perform the indicated operation. Use the form for vectors.u = <-5, -12>, v = <-6, -11>; Find u + v.

A. <1, -1> B. <-17, -17> C. <7, 5> D. <-11, -23>

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Graph the linear function. Give the domain and range.g(x) = x - 6

A. Domain: (-?, ?)
Range: (-?, ?)

B. Domain: (-?, ?)
Range: (-?, ?)

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Solve. = 

A. 7 B. 8 C. 64 D. 60

Mathematics