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Find the fourth roots of 81(cos 320° + i sin 320° ).
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Find the fourth roots of 81(cos 320° + i sin 320° ).
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Aug 8, 2018
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Find the fourth roots of 81(cos 320° + i sin 320° ).
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Mlishn
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cos 32-+ sin 320= -0.64278706 or to simply that -0.6427
Square root of 81 is 9
Ayckoster
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Aug 12, 2018
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