Question

How do you find `abs( 7 + 6i )`?

Answer 1

`|7+6i|=sqrt85`

Explanation:

Absolute value of a complex number `a+ib` is denoted as `|a+ib|`

and is given by `sqrt(a^2+b^2)`

Hence absolute value `|7+6i|` is

`sqrt(7^2+6^2)=sqrt(49+36)=sqrt85`