Find all cube roots of the complex number. Leave answers in trigonometric form.125i
A. 1, -1, -i
B. 5 cis 60°, 5 cis 180°, 5 cis 300°
C. 5 cis 0°, 5 cis 120°, 5 cis 240°
D. 5 cis 30°, 5 cis 150°, 5 cis 270°
Answer: D
Mathematics
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Factor the expression so that the remaining factors have only integer coefficients.
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?
A. 
B. 
C. 
D. 
E. 
Mathematics
Use a calculator to find a nonnegative angle less than 360° for the function value. Round to the nearest degree. cos ? = 0.5150, (270 °, 360°)
A. 239° B. 59° C. 121° D. 301°
Mathematics
Find the largest open intervals where the function is concave upward.f(x) = 4x3 - 45x2 + 150x
A. 
B. 
C. 
D. 
Mathematics
Solve.
A. 
B. 
C. 
D. 
E. no real solution
Mathematics