Question

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

Answer 1

`|7-6i|=sqrt(85)`

Explanation:

To calculate the absolute value of a complex number `z=a+bi` you use the following formula:

`|z|=sqrt(a^2+b^2)`

For given number you get:

`|z|=sqrt(7^2+(-6)^2)=sqrt(49+36)=sqrt(85)`