To explain: The rule of rationalizing a denominator and to complete the steps to rationalize the expression .
The value of expression in rationalized form is .
The given radical expression is .
Consider an expression .
In order to rationalize the denominator of the given expression, the numerator and denominator of the given expression is multiplied with the value given in the denominator. That is,
Thus, the rationalized form of the expression is .
Use the above method and complete the rationalization of the expression as shown below.
Thus, the value after rationalization is .
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