1.

According to De Moivre s theorem what is the value of z1/n ?

A. r<sup>1/n</sup> [cos(2k + ) + i sin(2k + )]
B. r<sup>1/n</sup> [cos(2k + )/n i sin(2k + )/n]
C. r<sup>1/n</sup> [cos(2k + )/n + i sin(2k + )/n]
D. r<sup>1/n</sup> [cos(2k + ) i sin(2k + )]
Answer» D. r<sup>1/n</sup> [cos(2k + ) i sin(2k + )]


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