Question

найдите значение выражения. Корни.

Answer 1

Ответ:

1)

$\frac{7}{9} \sqrt{27} \times \sqrt{3} = \frac{7}{9} \times 3 \sqrt{3} \sqrt{3} = \frac{7}{9} \times 3 = 7$

2)

$\sqrt{0.09 \times 2 {}^{6} \times 12 {}^{2} } = \sqrt{0.09 \times 64 \times 144} = \sqrt{829.44} = 28.8$

3)

$\sqrt{( - 2) {}^{5} ( - 2) {}^{7} } = \sqrt{ - 2 {}^{5} \times ( - 2 {}^{7} )} = \sqrt{2 {}^{12} } = 2 {}^{6} = 64$