4-1.Complex numbers
easy

જો સંખ્યાનો વ્યસ્ત તે જ સંખ્યા હોય , તો સંખ્યા મેળવો.

A

$i$

B

$-1$

C

$2$

D

$-i$

Solution

(b) We know that, multiplicative inverse of $x + iy$ is $\frac{1}{{x + iy}}$ According to question $x + iy = \frac{1}{{x + iy}}$ and only $(b)$ is satisfying such condition. .

Standard 11
Mathematics

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