Question

вычислите
$8 \sqrt{1 \times\frac{9}{16} } - 1$
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Answer 1

$8\sqrt{1\cdot \frac{9}{16}}-1=8\sqrt{\frac{9}{16}}-1=8\cdot \frac{3}{4}-1=2\cdot 3-1=6-1=5$