For the given functions f and g, find the requested function and state its domain.f(x) = x + 3; g(x) = 7x2Find f - g.
A. (f - g)(x) = -7x2 + x + 3; all real numbers
B. (f - g)(x) = 7x2 + x + 3; all real numbers
C. (f - g)(x) = 7x2 - x - 3; all real numbers
D. (f - g)(x) = -7x2 + x + 3; {x|x ? -3}
Answer: A
Mathematics
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A. 24a2 - 9ab - 33b2 B. 24a2 + 88ab - 33b2 C. 24a2 + 79ab - 33b2 D. 24a2 + 79ab + 79b2
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Find zw or 
as specified. Leave your answer in polar form.z = 1 - iw = 1 - 
iFind 
.
A. 
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B. 
(cos 75° + i sin 75°)
C. 
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D. 
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Complete the identity.sin ? [sin(2?) + sin 4?)] = ?
A. 
cos ? [cos(2?) + cos(4?)]
B. cos ? [cos(2?) + cos(4?)]
C. 
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D. cos ? [cos(2?) - cos(4?)]
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Simplify. (Assume all variables are nonzero.)150
A. -1 B. 1 C. 0 D. 15
Mathematics