How to simplify #sqrt(-81)#?
3 Answers
Explanation:
You cannot simplify this into a real number, but if you use the imaginary number (
This is complex number questions that deals with the imaginary i.
Explanation:
first, lets rewrite it,
which then turns into
the
Therefore u can transform it to i which leaves u with
from there, u simplify the 81 as per normal
so ur answer should be
See a solution process below:
Explanation:
First, rewrite the expression as:
Next, use this rule for radicals to simplify the radical:
The square root of
Therefore: