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सबसे छोटा धनात्मक पूर्णांक $n$ जिसके लिए $\frac{(1 + i)^n}{(1 - i)^{n-2}}$ एक वास्तविक संख्या है, वह है ...

$\text{Re} \left( \frac{(1 + i)^2}{3 - i} \right) =$

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यदि $z = 1 + i$ है,तो $z^2$ का गुणात्मक प्रतिलोम (multiplicative inverse) क्या होगा (जहाँ $i = \sqrt{-1}$)

$\sum\limits_{n = 1}^{50} {{i^{2n-1}}}$ का मान ज्ञात कीजिए (जहाँ $i = \sqrt{-1}$)

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सम्मिश्र संख्या $z = \frac{5+2i}{2-5i} - \frac{3-4i}{4+3i} - \frac{1}{i}$ का वास्तविक भाग है

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