4-1.Complex numbers
medium

समीकरण $|1-i|^{x}=2^{x}$ के शून्येत्तर पूर्णाक मूलों की संख्या ज्ञात कीजिए।

A

$0$

B

$0$

C

$0$

D

$0$

Solution

$|1-i|^{x}=2^{x}$

$\Rightarrow(\sqrt{1^{2}+(-1)^{2}})^{x}=2^{x}$

$\Rightarrow(\sqrt{2})^{x}=2^{x}$

$\Rightarrow 2^{x / 2}=2^{x}$

$\Rightarrow \frac{x}{2}=x$

$\Rightarrow x=2 x$

$\Rightarrow 2 x-x=0$

$\Rightarrow x=0$

Thus, $0$ is the only integral solution of the given equation. Therefore, the number of nonzero integral solutions of the given equation is $0 .$

Standard 11
Mathematics

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