Express the product as a sum or difference.sin 4x sin 8x

A. sin2 32x2
B. (- cos 4x - cos 12x)
C. (cos 4x - cos 12x)
D. (cos 12x - sin 4x)


Answer: C

Mathematics

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Determine what the next equation would be, and verify that it is indeed a true statement.15 + 51 = 6616 + 61 = 77

A. 17 + 71 = 88 B. 55 + 33 = 88 C. 71 + 17 = 88 D. 17 + 71 = 102

Mathematics

Evaluate the integral.dx

A. 5 ln  + C
B. -ln  + C
C. 5 ln  + C
D. ln  + C

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Factor completely. If the polynomial is prime, state so.56s3 + 7

A. 7(2s + 1)(4s2 + 2s + 1) B. 7(2s + 1)(4s2 - 2s + 1) C. 7(2s + 7)(4s2 - 14s + 7) D. 7(2s - 1)(4s2 + 2s + 1)

Mathematics

Use the distributive property to multiply.m(m - n + 9)

A. m2 - mn + 9 B. m2 - mn - 9m C. m2 - n + 9 D. m2 - mn + 9m

Mathematics