4-1.Complex numbers
easy

$x^{2}+2=0$ को हल कीजिए।

A

$\pm \sqrt{2} i$

B

$\pm \sqrt{2} i$

C

$\pm \sqrt{2} i$

D

$\pm \sqrt{2} i$

Solution

We have, $x^{2}+2=0$

or     $x^{2}=-2 \text { i.e., } x=\pm \sqrt{-2}=\pm \sqrt{2} i$

Standard 11
Mathematics

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