Express the product as a sum containing only sines or cosines.sin 
cos 
A. 
[sin (3?) - sin (2?)]
B. 
[cos (3?) + sin (2?)]
C. 
sin cos (5?)
D. 
[cos (6?) - sin (4?)]
Answer: A
Mathematics
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Use the given vectors to find the specified scalar.u = -5i + 3j, v = -5i - 6j, w = -3i + 12j; Find u ? w + v ? w.
A. 1 B. -1 C. -6 D. -10
Mathematics
Find the one-sided limit, if it exists.
?
?
A. -15
B. 
C. -6
D. 9
E. The limit does not exist
Mathematics
Factor the polynomial completely. If the polynomial cannot be factored, say it is prime.x4 - 16
A. prime B. (x2 + 4)(x + 2)(x - 2) C. (x2 + 4)2 D. (x2 - 4)2
Mathematics
Evaluate the expression.
A. -19 B. -3 C. 3 D. 4
Mathematics