Question

What is the absolute value of the number?
3 + i

A.square root 10
B.4
C.8
D.square root 3

Answer 1

i think its D.

Answer 2

The absolute value of a complex number \(z=a+bi\) is defined as follows:\[|z|=|a+bi|=\sqrt{a^2+b^2}.\]Try again using this.