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Rationalization



Rationalization:A fraction is to be rationalized if the denominator contains irrational numbers or complex numbers.that irrational number may be multiplied top and bottom of the fraction.

\frac{3}{\sqrt{7}} = \frac{3}{\sqrt{7}} \cdot 
\frac{\sqrt{7}}{\sqrt{7}} = \frac{3\sqrt{7}}{7}

 




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