Express the product as a sum containing only sines or cosines.sin 
cos 
A. 
[cos(6?) + sin(5?)]
B. 
[cos(12?) - sin(10?)]
C. 
sin cos(11?)
D. 
[sin(6?) - sin(5?)]
Answer: D
Mathematics
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Find the length of the curve.The line segment r = 9 sec ?, 0 ? ? ? 
A. 9 ln
B. 
(
+ ln(
+ 1))
C. 
D. 9
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Simplify the expression. Use positive exponents. Assume variables represent nonnegative numbers.
A. 3x B. 3x8 C. 3 D. 3x4
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Multiply and simplify.
? 
A. 
B. 
C. 
D. 
Mathematics
Form a polynomial f(x) with real coefficients having the given degree and zeros.Degree: 4; zeros: -1, 2, and 1 - 2i.
A. f(x) = x4 - 3x3 - 3x2 + 7x + 6 B. f(x) = x4 - x3 + 3x2 - 5x - 10 C. f(x) = x4 - x3 + x2 + 9x - 10 D. f(x) = x4 - 3x3 + 5x2 - x - 10
Mathematics