Question

2 - Racionalizar
$2a - 1 \\ \ \sqrt{2a - 1?} {}$
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Answer 1

$\Large\boxed{\begin{array}{l}\sf\dfrac{(2a-1)}{(\sqrt{2a-1})}\cdot\dfrac{(\sqrt{2a-1})}{(\sqrt{2a-1})}=\dfrac{(2a-1)\cdot(\sqrt{2a-1})}{(\sqrt{2a-1})^2}\\\\\sf\dfrac{\diagup\!\!\!\!\!\!(2a-\diagup\!\!\!\!\!\!1)\cdot\sqrt{2a-1}}{\diagup\!\!\!\!\!\!(2a-\diagup\!\!\!\!\!\!1)}=\sqrt{2a-1}\end{array}}$