Solve the equation in the complex number system.x3 - 27i = 0
A. 3(cos 60° + i sin 60°), 3(cos 180° + i sin 180°), 3(cos 300° + i sin 300°)
B. 3(cos 30° + i sin 30°), 3(cos 150° + i sin 150°), 3(cos 270° + i sin 270°)
C. 1, -1, -i
D. 3(cos 0° + i sin 0°), 3(cos 120° + i sin 120°), 3(cos 240 + i sin 240°)
Answer: B
Mathematics
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A. 
B. 
C. 
D. 
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Find the indicated root, or state that the expression is not a real number.
A. -4 B. 4 C. not a real number D. -16
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Use the properties of logarithms to evaluate the expression.eln x41
A. x B. ln x41 C. ex41 D. x41
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