Use a half-angle formula to find the exact value of the expression.cos 
A. 
B. - 
C. 
D. - 
Answer: C
Mathematics
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Solve the initial value problem.
= 4 - 2x, y '(0) = 8, y(0) = 2
A. y = 4x2 + 2x3 + 8x + 2
B. y = 2x2 + 
x3 - 8x - 2
C. y = 2
D. y = 2x2 - 
x3 + 8x + 2
Mathematics
Find the composite function for the given functions and state the domain. f ? g for f(x) = x3 + 5 and g(x) = 
A. 
, for all x
B. x3, for all x
C. -x, for all x
D. x, for all x
Mathematics
Solve.-2.6 = y + 2.7
A. {0.1} B. {-5.3} C. {-0.1} D. {5.3}
Mathematics
Factor.x3 - 8
A. (x - 2)3 B. (x - 2)(x2 + 2x + 4) C. Prime polynomial D. (x + 2)(x2 - 2x + 4)
Mathematics