Rationalizing the denominator

The video tutorial discusses the concept of rationalizing the denominator, primarily used in algebra to remove square roots from the denominator. It highlights that in calculus, the presence of radicals in the denominator is less concerning, but rationalizing is still used for different purposes. The tutorial provides a practical example of rationalizing by multiplying by the square root of 2 over itself, simplifying the expression. The explanation emphasizes the simplicity and utility of the process.

Explain the process of multiplying by the square root of 2 to rationalize the denominator.

What is the result of rationalizing the denominator in the example given?