Question

Rationalise the following based on the above examples and explanation:
$1\ \sqrt{7}$
​

Answer 1

$\underline{ \huge\bf\red{QuestiOn} :}$

• $\sf rationalise \ \boxed{ \frac{1}{ \sqrt{7} } }$

$\underline{ \: \huge\bf\green{SolutiOn} \: :}$

We have,

$\begin{aligned} \\ & \qquad\frac{1}{ \sqrt{7} } \\ \\ & = \frac{1}{ \sqrt{7} } \times \frac{ \sqrt{7} }{ \sqrt{7} } \\ \\ & = \frac{1 \times \sqrt{7} }{ \sqrt{7} \times \sqrt{7} } \\ \\ & = \boxed{ \bf \frac{ \sqrt{7} }{7}} \end{aligned}$

$\red{\rule{5.8cm}{0.02cm}}$

$\mid \underline{\underline{\LARGE\bf\green{Brainliest \: Answer}}}\mid$

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