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
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Factor completely.252x4 - 175
A. 7(6x2 - 5)(6x2 + 5) B. 7(6x2 - 5)2 C. 7(36x4 - 25) D. (42x2 - 35)(6x2 + 5)
Mathematics
Find the torsion of the space curve.r(t) = 
i + 3tj + 
k
A. ? = 
B. ? = 
C. ? = - 
D. ? = 
Mathematics
Solve the rational inequality. Write the solution set using interval notation; then graph the solution set on a number line.
> 0
A. 
B. (-?, 0)
C. 
D. 
Mathematics
Write the decimal as a fraction or mixed number in lowest terms.63.626
A. 63
B. 
C. 12
D. 
Mathematics