Mark the correct answer for

MATHEMATICS · Subjective · CBSE · Mathematics · Complex Numbers and Quadratic Equations · Complex Numbers and Quadratic Equations

Problem

Mark the correct answer for (1+i)−1=(1+i)^{-1}= ? a) (−12+12i)\left(-\frac{1}{2}+\frac{1}{2} i\right) b) (2−3i)(2-3 i) c) (12−12i)\left(\frac{1}{2}-\frac{1}{2} i\right) d) (2−i)(2-i)

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