4-1.Complex numbers
easy

यदि $0 < amp{\rm{ (z)}} < \pi {\rm{,}}$तब $amp(z)-amp ( - z) = $

A

$0$

B

$2\,amp{\rm{ }}(z)$

C

$\pi $

D

$ - \pi $

Solution

(c)$amp(z)  – amp( – z) = {\tan ^{ – 1}}\frac{y}{x} – \left( {{{\tan }^{ – 1}}\frac{y}{x} – \pi } \right) = \pi $

Standard 11
Mathematics

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