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Question
Rationalise the denominator of each of the following
`3/sqrt5`
Solution
We know that rationalization factor for `1/sqrta` is `sqrta` We will multiply numerator and denominator of the given expression `3/sqrt5` by `sqrt5`to get
`3/sqrt5 xx sqrt5/sqrt5 = (3sqrt5)/(sqrt5 xx sqrt5)`
`= (3sqrt5)/5`
Hence the given expression is simplified to `(3sqrt5)/5`
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