Answer:
Hello There!
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4th root of 256 is 4, and 240/4 = 60, and 360/4 = 90, so the 4 roots are
4(cos 60 + i sin 60)
4(cos 150 + i sin 150)
4(cos 240 + i sin 240)
4(cos 330 + i sin 330)
Hope this helped you. Brainliest would be nice!