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tatuchka [14]
2 years ago
8

A) Rationalise the denominator of 20/root 10 Give your answer in its simplest form.

Mathematics
2 answers:
denis-greek [22]2 years ago
5 0

‎ ‎‎‎ ‎ ‎‎‎ ‎ ‎‎‎ ‎ ‎‎‎ ‎ ‎‎‎ ‎ ‎‎‎ ‎ ‎‎‎ ‎ ‎\bigstar \boxed{\large\bf{\leadsto 2\sqrt{10}}}

__________________________________________

\large\bf{Here,}

‎ ‎‎‎ ‎ ‎‎‎ ‎ ‎‎‎ ‎ ‎‎‎ ‎ ‎‎‎ ‎ ‎‎‎ ‎ ‎‎‎ ‎ ‎\large\bf{⟹\frac{20}{\sqrt {10}}}

❒ Multiply the numerator and denominator by \bf{\sqrt{10}}

‎ ‎‎‎ ‎ ‎‎‎ ‎ ‎‎‎ ‎ ‎‎‎ ‎ ‎‎‎ ‎ ‎‎‎ ‎ ‎‎‎ ‎ ‎\large\bf{⟼\frac{20}{\sqrt{10}}\times\frac{\sqrt{10}}{\sqrt{10}}}

‎ ‎‎‎ ‎ ‎‎‎ ‎ ‎‎‎ ‎ ‎‎‎ ‎ ‎‎‎ ‎ ‎‎‎ ‎ ‎‎‎ ‎ ‎\large\bf{⟼\frac{20\sqrt{10}}{(\sqrt{10})^2}}

‎ ‎‎‎ ‎ ‎‎‎ ‎ ‎‎‎ ‎ ‎‎‎ ‎ ‎‎‎ ‎ ‎‎‎ ‎ ‎‎‎ ‎ ‎\large\bf{⟼\frac{20\sqrt{10}}{10}}

‎ ‎‎‎ ‎ ‎‎‎ ‎ ‎‎‎ ‎ ‎‎‎ ‎ ‎‎‎ ‎ ‎‎‎ ‎ ‎‎‎ ‎ ‎\large\bf{⟼2\sqrt{10}}

Montano1993 [528]2 years ago
4 0
<h3>Answer:</h3>

\bf 2 \sqrt{10}  \approx6.32456

<h3>Step-by-step explanation:</h3>

\sf  \frac{20}{ \sqrt{10} }

\sf  =  \frac{20}{ \sqrt{10} }  \times  \frac{ \sqrt{10} }{ \sqrt{10} }

\sf  =  \frac{20 \sqrt{10} }{ \sqrt{10} \sqrt{10}  }

\sf  =  \frac{20 \sqrt{10} }{10}

\sf  = 2 \sqrt{10}  \approx6.32456

<h3>Conclusion:</h3>

Simple form of \sf  \frac{20}{ \sqrt{10} } is \bf 2 \sqrt{10}  \approx6.32456.

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