Find all cube roots of the complex number. Leave answers in trigonometric form.125i
A. 5 cis 30°, 5 cis 150°, 5 cis 270°
B. 5 cis 60°, 5 cis 180°, 5 cis 300°
C. 1, -1, -i
D. 5 cis 0°, 5 cis 120°, 5 cis 240°
Answer: A
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Find the derivative of the function.p = 
A. 
= 
q14 + 16q7 + 27q8 - 
B. 
= 
q10 + 8q3 + 15q4 - 
C. 
= 
q10 - 
D. 
= 
q10 + 2q3 + 3q4 + 
Compare the right-hand and left-hand derivatives to determine whether or not the function is differentiable at the point whose coordinates are given.
y = 
y = -1
A. Since limx?-1+ f '(x) = 0 while limx?-1- f '(x) = 1, f(x) is not differentiable at 
B. Since limx?-1+ f '(x) = 0 while limx?-1- f '(x) = -1, f(x) is not differentiable at 
C. Since limx?-1+ f '(x) = -1 while limx?-1- f '(x) = 0, f(x) is not differentiable at 
D. Since limx?-1+ f '(x) = 0 while limx?-1- f '(x) = 0, f(x) is differentiable at 
Solve the logarithmic equation.log 5x = log 3 + log (x + 4)
A. 
B. 
C. 6
D. -6
Find the center and radius of the circle whose equation is given.x2 + y2 + 10x - 10y + 50 = 64
A. center: (-5, 5); radius: 8 B. center: (-5, 5); radius: 64 C. center: (5, -5); radius: 8 D. center: (5, -5); radius: 64