Find all cube roots of the complex number. Leave answers in trigonometric form.125
A. 5 cis 90°, 5 cis 210°, 5 cis 330°
B. 5 cis 0°, 5 cis 60°, 5 cis 120°
C. 5 cis 45°, 5 cis 165°, 5 cis 325°
D. 5 cis 0°, 5 cis 120°, 5 cis 240°
Answer: D
Mathematics
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Find all real numbers in the interval [0, 2?) that satisfy the equation.cos2x + 2 cos x + 1 = 0
A. 
B. 
C. 
D. 
Mathematics
Determine whether or not one or more pairs of twin primes exist between the pair of numbers given. If so, identify the twin primes.15 and 28
A. 17, 19 B. 17, 19 and 21, 23 C. No D. 21, 23
Mathematics
Express the number in decimal notation.2.88 × 105
A. 28,800 B. 2,880,000 C. 144 D. 288,000
Mathematics
Use a graphing calculator to solve the equation. Round your answer to two decimal places.ex = x3
A. {-0.79} B. {2.54} C. {-0.71} D. {1.86}
Mathematics