AM-298

Surds and rationalising

A Math · Secondary 3 · Medium · Surds and rationalising

Simplify

\dfrac{3}{\sqrt{5}} - \dfrac{\sqrt{5}}{2}

.

$\dfrac{\sqrt{5}}{10}$
$\dfrac{\sqrt{5}}{2}$
$\dfrac{1}{\sqrt{5}}$
$\dfrac{5\sqrt{5}}{2}$

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