Rewrite the expression as a single trigonometric function using a double-angle identity.4 sin 2? cos 2?
A. 
sin 16?
B. cos 4?
C. cos 8?
D. 2 sin 4?
Answer: D
Mathematics
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Solve the problem.Find all points on the y-axis of a Cartesian coordinate system that are 17 units from the point 
A. (0, -2) and (0, 32) B. (-2, 0) and (32, 0) C. (0, -8) and (0, 8) D. (-8, 0) and (8, 0)
Mathematics
Verify the identity.(a tan ? + b)2 + (b tan ? - a)2 = (a2 + b2) sec2 ?
What will be an ideal response?
Mathematics
Round to the given value. $0.06612
cent
A. $0.00 B. $0.07 C. $1.00 D. $0.06
Mathematics
Find the value of the radical expression.-
A. -24.5 B. -14 C. 24.5 D. -7
Mathematics