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This is because we also have the limitation that we can only take the square root of a positive number or zero.
This is not true. The square root of -1 is equal to i (some notations use j). Complex numbers....

by bobybobbobbobybob

Sun Jul 17, 2016 4:52 am
Forum: Problem Solving
Topic: Inequalities and squaring both sides?
Replies: 7
Views: 50637