Use a sum-to-product identity to rewrite the expression.sin 
+ sin 
A. 2cos 
cos 
B. 2sin 
sin 
C. cos 
cos 
D. 2sin 
cos 
Answer: D
Mathematics
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Use a vertical format to find the product.2x2 + 5x + 3
A. 2x3 + 17x2 + 33x + 18 B. 14x3 + 35x2 + 21x C. 14x3 + 12x2 + 30x + 9 D. 2x3 + 12x2 + 30x + 18
Mathematics
Find the limit of the sequence or determine that the limit does not exist.an = 
4/n
A. ln 4 B. does not exist C. 0 D. 1
Mathematics
Find the first and second derivatives of the function.
?
What will be an ideal response?
Mathematics
Solve. Give your answer as a mixed numeral.Ellen is knitting a scarf with one 8
-inch blue stripe, one 2
-inch green stripe, and one 1
-inch white stripe. How wide is the scarf?
A. 
in.
B. 2
in.
C. 
in.
D. 12
in.
Mathematics