Evaluate. Assume that all variables represent nonzero real numbers.z0
A. z
B. 0
C. -1
D. 1
Answer: D
Mathematics
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Sketch the circle.(x - 1)2 + (y - 4)2 = 4
A. 
B. 
C. 
D. 
Mathematics
Simplify the expression.
A. 7 B. 3 C. -7 D. 35
Mathematics
Evaluate the determinant.
A. bc - a B. bc - 1 C. a - bc D. 1 - bc
Mathematics
Find z1z2. Write the answer in polar form with the argument between 0° and 360°.z1 = 1 - 
i, z2 =2 - 2i
A. 4
(cos 345° + i sin 345°)
B. 4(cos 345° + i sin 345°)
C. (2 + 2
)(cos 255° + i sin 255°)
D. 4
(cos 255° + i sin 255°)
Mathematics