How do you rationalize the denominator and simplify $1/sqrt7$ ?

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How do you rationalize the denominator and simplify $1/sqrt7$ ?

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Answer 1 · 2018-04-02T08:13:10

$1/sqrt7=(1·sqrt7)/(sqrt7·sqrt7)=sqrt7/7$

Explanation:

In a fraction if we multiply and divide by the same number, the fraction doesn't varies. We choose $sqrt7$ because we need to remove saquare root from denominator and we know that

$sqrta·sqrta=sqrt(a^2)=a$ for whatever be $a in RR$

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How do you rationalize the denominator and simplify $1/sqrt7$ ?

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