Find the exact value of the sum.sin 105° + sin 15°
A. 
B. 
C. - 
D. 
Answer: D
Mathematics
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Perform the indicated operation.
A. x - 48 B. x + 9 C. x3 - 48 D. x2 + 9
Mathematics
Find the quadratic approximation of f at x = 0.f(x) = ln(cos 7x)
A. Q(x) = 1 + 
x2
B. Q(x) = 
x2
C. Q(x) = - 
x2
D. Q(x) = 1 - 
x2
Mathematics
Decide whether the composite functions, f ? g and g ? f, are equal to x.f(x) = 
, g(x) = x2
A. No, yes B. Yes, yes C. No, no D. Yes, no
Mathematics
Find the indicated matrix.Let B = [-1 2 4 -3]. Find -3B.
A. [-3 0 2 -5] B. [3 2 4 -3] C. [3 -6 -12 9] D. [-3 6 12 -9]
Mathematics