Warm up. 1. 2. . Lesson 11-4 Irrational Square Roots. Objective : To simplify radicals and to find decimal approximations of irrational square roots. Irrational Numbers . Irrational numbers are real numbers that cannot be expressed in the form a/b when a and b are integers.
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Objective : To simplify radicals and to find decimal approximations of irrational square roots.
Remember – there are two roots for every positive number.
The √ sign referring to the positive root unless there
is a sign in front of it.