How do you find the absolute value of $-2-i$ ?

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Answer 1 · 2016-08-28T15:22:41

$|-2-i|=sqrt5$

Absolute value of a complex number $a+ib$ is written as $|a+ib|$ and its value as $sqrt(a^2+b^2)$ .

Hence, absolute value of $-2-i$ is $sqrt((-2)^2+(-1)^2)=sqrt(4+1)=sqrt5$ .

How do you find the absolute value of -2-i-2-i?