Question

Find the absolute value of complex number...
|-2 + 10i|

Answer 1

I remember a + b^2, so
-2 + (-1)
^Because the i^2 makes the whole thing -1 right?

Answer 2

Yet the final answer is
\[2\sqrt{26}\]

Answer 3

\[|a+bi|=\sqrt{a^2+b^2}\]

Answer 4

Oh, square root of a^2 + b^2.

Thanks.