Use an identity to write the expression as a single trigonometric function or as a single number.sin 8x cos 8x
A. 2 sin 4x
B. 
sin 16x
C. cos 4x
D. cos 8x
Answer: B
Mathematics
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Find the exact value of the expression or state that it does not exist.cos
A. 
B. - 
C. 
D. - 
Mathematics
Write the expression in word form.7 ? 7 ? 7
A. three times seven B. seven plus three C. seven squared D. seven cubed
Mathematics
Find the quadratic function whose graph contains the given points.(7, -13), (4, 5), (6, -3)
A. f(x) = 4x2 + 16x - 27 B. f(x) = 2x2 + 16x - 27 C. f(x) = -2x2 + 16x - 5 D. f(x) = -2x2 + 16x - 27
Mathematics
Solve the problem.The product of 3 and the square of a number is 12. Find the number(s).
A. 2
B. 2
C. -2
, 2
D. -2, 2
Mathematics