What counts as a surd?
What counts as a surd?
A surd is an exact root that is irrational, such as 2\sqrt{2}2 or 7\sqrt{7}7. If the root evaluates to a whole number, then it is not a surd.
What counts as a surd?
What counts as a surd?
A surd is an exact root that is irrational, such as 2\sqrt{2}2 or 7\sqrt{7}7. If the root evaluates to a whole number, then it is not a surd.