Question

Хелп плиз
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Answer 1

$frac{(7sqrt{14})^2}{7} = frac{49 cdot 14}{7} = 7 cdot 14 = 98\frac{144}{(4sqrt{12})^2} =frac{144}{(8sqrt{3})^2}=frac{144}{64 cdot 3} = frac{48}{64} = frac{3}{4}= 0,75$