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{{ printedBook.courseTrack.name }} {{ printedBook.name }} If an inequality is given, and all numbers and expressions are positive, the inequality still holds for the square root of both sides.
$9<16⇒9 <16 $
This operation can also be performed when solving inequalities. However, it must be known that the **variable is positive**. Thus for $r_{2}<14$ and $r>0$ the following yields.
$r<14 $