Question

Арифметический квадратный корень
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Answer 1

$7 {}^{2} = 49 \\ \sqrt{49} = \sqrt{ {7}^{2} } = 7 \\ ( - 6) {}^{2} = 36 \\ \sqrt{36} = \sqrt{ {6}^{2} } = 6$

$(0.007) {}^{2} = 0.000049 \\ \sqrt{0.000049} = \sqrt{ {0.007}^{2} } = 0.007 \\ 700 {}^{2} = 49 0000 \\ \sqrt{490000} = \sqrt{700 {}^{2} } = 700$