Find all cube roots of the complex number. Leave answers in trigonometric form.64
A. 4 cis 0°, 4 cis 120°, 4 cis 240°
B. 4 cis 0°, 4 cis 60°, 4 cis 120°
C. 4 cis 45°, 4 cis 165°, 4 cis 325°
D. 4 cis 90°, 4 cis 210°, 4 cis 330°
Answer: A
Mathematics
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A. R = 207, ? = -20.5° B. R = 665, ? = 226.9° C. R = 151, ? = 159.5° D. R = 665, ? = 46.9°
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Write the equation of the circle with the given center and radius.center (3, 0), radius 7
A. x2 + (y + 3)2 = 7 B. (x + 3)2 + y2 = 49 C. (x - 3)2 + y2 = 49 D. x2 + (y - 3)2 = 7
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Find all real solutions to the equation.5 + 
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A. {8} B. ? C. {2} D. {2, 8}
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Solve the inequality by the test-point method. Write the solution in interval notation.4x - 4 - x2 < 0
A. (2, ?) B. (-?, 2) C. (-2, 2) D. (-?, 2) ? (2, ?)
Mathematics