Use sum-to-product identities to rewrite the expression as a product.cos 6x + cos 4x
A. 2 cos 5x sin x
B. 2 cos 5x cos x
C. 2 sin 5x sin x
D. 2 cos 5x
Answer: B
Mathematics
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Follow the order of operations to simplify the expression. 
÷ 
A. 
B. 
C. 2
D. 
Mathematics
Find the requested composition or operation.f(x) = 5x - 6, g(x) = 8x - 4Find (f - g)(x).
A. -3x - 2 B. 13x - 10 C. -3x - 10 D. 3x + 2
Mathematics
Solve the system of equations by elimination.
A. x = 1, y = 0; (1, 0) B. x = 0, y = 1; (0, 1) C. x = 1, y = 1; (1, 1) D. x = 0, y = 0; (0, 0)
Mathematics
Factor the sum or difference of cubes. c3 + d3
A. (c + d)(c2 - cd - d2) B. (c + d)(c2 - cd + d2) C. (c - d)(c2 - cd + d2) D. (c + d)(c2 + d2)
Mathematics