Verify that rationalizing the denominator and squaring both numerator and denominator are same.
No, its not the same thing.
Here, we have:
Now, we will eliminate the radical by squaring it:
Now, when we rationalize the denominator we get:
Thus, the elimination of the radical by rationalize the denominator is
Hence, the elimination of the radical by squaring both numerator and denominator is not the same thing as rationalizing the denominator.
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