Question

$\sqrt{x} ( \sqrt{x} - \sqrt{x -a)}$
where limit is
$\infty$
​

Answer 1

$\boxed{\underline{\bf \: ANSWER}}$

$\sf \sqrt{x} ( \sqrt{x} - \sqrt{x}-a) \\ \\\sf Cancel \sqrt{x} - \sqrt{x } \rightarrow \: 0 \\ \\ = \sf \sqrt{x} ( \sqrt{x} - \sqrt{x} - a) \\ \sf= \sqrt{x} (a) \\ = \sf \sqrt{x} \times a \\ = \boxed{\underline{\tt \: \sqrt{x} a}}$

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