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anonymous
 5 years ago
(1+2i)/(23i) Solve
anonymous
 5 years ago
(1+2i)/(23i) Solve

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radar
 5 years ago
Best ResponseYou've already chosen the best response.0To simplify a complex fraction you take the denominator and determine what is called the conjugate surd. This denominator is 23i, the conjugate surd is the real value unchanged but change the sign of the imaginary value. So the conjugate surd is 2+3i. Then you multiply both the numerator and denominator by this conjugate sure. 1+2i 2+3i  23i 2+3i Note this does not change the value of the fraction as we are effectively multiplying by 1. 2+3i+4i+6i^2  4+6i6i9i^2 consolidate similar terms 2+7i+6i^2  49i^2 Remember that i^2 is actually a minus 1 (1) 4+7i  13
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