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

Mathematics

You might also like to view...

Solve the inequality. Graph the solution set and write the solution set in set-builder notation.x2 - 3x - 4 ? 0

A. {x 

B. {x 

C. {x 

D. {x 

Mathematics

Use reference angles to find the exact value of the expression. Do not use a calculator.tan 

A. - 
B.
C.
D.

Mathematics

Solve the problem.What angle is twice its complement?

A. 60° B. 45° C. 30° D. 90°

Mathematics

Factor completely using the trial and error method to factor trinomials. If unfactorable, indicate that the polynomial is prime.20x2 + 16x - 4

A. (5x - 1)(4x + 4) B. (5x + 1)(4x - 4) C. (4x - 1)(5x + 4) D. (x - 1)(20x + 4)

Mathematics