Question

обчислити :
а)
$36 \times {3}^{ - 2}$
б)
${14}^{0} - 5$
в)
$2 \times ( \frac{1}{3} ) {}^{ - 1}$

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Answer 1

Ответ:

$a)36 \times {3}^{ - 2} = 36 \times \frac{1}{ {3}^{2} } = 36 \times \frac{1}{9} = \frac{36}{1} \times \frac{1}{9} = 4$

$b) {14}^{0} - 5 = 1 - 5 = - 4$

$g)2 \times { \frac{1}{3} }^{ - 1} = \frac{2}{1} \times \frac{1}{ { \frac{1}{3} }^{1} } = \frac{2}{1} \times 1 \div \frac{1}{3} = \frac{2}{1} \div \frac{1}{3} = \frac{2}{1} \times \frac{3}{1} = 6$