Find the exact value of the expression.sin 
A. -
(
- 1)
B. - 
C. 
D. 
(
- 1)
Answer: C
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Find the quotient 
of the complex numbers. Leave answer in polar form.z1 = 6
z2 = 12
A. 
B. 
C. 
D. 
Solve the system of equations. If the system is inconsistent or has dependent equations, say so. 2x - 2y + 8z = 16-5x + 5y - 20z = -40 x - y + 4z = 8
A. {(0, 0, 2)} B. {(7, 3, 1)} C. ?; inconsistent system D. {(x, y, z)|x - y + 4z = 8}; dependent equations
Explain how the graph of f can be obtained from the graph of y = 
or y = 
. f(x) = 
A. Shift the graph of y = 
to the left 20 units and downward 5 units.
B. Stretch the graph of y = 
vertically by a factor of 20, and shift to the left 5 units.
C. Shift the graph of y = 
to the right 5 units and upward 20 units.
D. Stretch the graph of y = 
vertically by a factor of 5, and shift to the left 20 units.
Write the fraction in lowest terms.
A. 
B. 
C. 
D. 