How do you simplify $abs(-3.6i )$ ?

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Answer 1 · 2015-12-10T12:37:03

$abs(-3.6i) = 3.6$

One way to look at the absolute value is as the distance from the origin (where "distance" is always non-negative).

Since $(-3.6i)$ has no Real term we are looking at the distance from $(0,0i)$ along the Imaginary Axis to $(0,-3.6i)$

This distance is clearly $3.6$ units.
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How do you simplify abs(-3.6i )abs(-3.6i )?