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Dahasolnce [82]
3 years ago
10

1. Given z_1=5(cos⁡〖20°〗+i sin⁡〖20°〗 ),z_2=4(cos⁡〖10°〗+i sin⁡〖10°〗) find: (Leave answer in polar form.)

Mathematics
1 answer:
coldgirl [10]3 years ago
8 0
By DeMoivre's theorem, you have

z_1=5(\cos20^\circ+i\sin20^\circ)
\implies {z_1}^5=5^5(\cos100^\circ+i\sin100^\circ)
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