Question

$\sqrt{4 \frac{57}{?196 =}$
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Answer 1

$\sqrt{4 \frac{57}{196} }$

$= \sqrt{ \frac{4 \times 196 + 57}{196} }$

$= \sqrt{ \frac{784 + 57}{196} }$

$= \sqrt{ \frac{841}{196} }$

$= \sqrt{ \frac{29 \times 29}{14 \times 14} }$

$= ± \frac{29}{14}$

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