Find all complex roots. Write the answer in polar form, with 0 ? ? ? 360°.Cube roots of -8
A. 2(cos 60° + i sin 60°), 2(cos 0° + i sin 0°)
B. 2(cos 60° + i sin 60°), 2(cos 180° + i sin 180°), 2(cos 300° + i sin 300°)
C. 2(cos 30° + i sin 30°), 2(cos 150° + i sin 150°), 2(cos 270° + i sin 270°)
D. 2(cos 120° + i sin 120°), 2(cos 180° + i sin 180°), 2(cos 300° + i sin 300°)
Answer: B
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Find an upper bound for the magnitude |E| of the error in the linear approximation L to f at the given point over the given region.
at 
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