Question

rationalize 2 by
$\sqrt{7}$
​

Answer 1

Answer:

$\frac{2}{ \sqrt{7} } = \frac{2}{ \sqrt{7} } \times \frac{ \sqrt{7} }{ \sqrt{7} } \\ \\ = \frac{2 \sqrt{7} }{7}$

Answer 2

Answer:

2/√7

2×√7/ √7 × √7

=2√7/7

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