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Raina Walls
11 November, 19:39
Simplify (9 + 7i) / (-10 + 8i)
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Ronin
11 November, 20:36
0
Multiply numerator and denominator by the conjugate of the denominator
Denominator: - 10 + 8i
Conjugate of the denominator: - 10 - 8i
Operation:
[9 + 7i] / [-10 + 8i] * [-10 - 8i] / [-10 - 8i] = [-90 - 72i - 70i + 56] / [100 + 64] =
[-34 - 142i] / 164 = [-17 - 71i] / 82
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Kamila
11 November, 22:30
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-17/82-71i/82 should be the correct answer.
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