Question

Сравнить числа
1,7*10^-2 и 1,7*10^-4
4,2*10^-3 и 4,1*10^4

Answer 1

Объяснение:

1)

$1.7 \times {10}^{ - 2} и 1.7 \times {10}^{ - 4}$

$1.7 \times {10}^{ - 2} = 1.7 \times \frac{1}{100} = 0.017$

$1.7 \times {10}^{ - 4} = 1.7 \times \frac{1}{10000} = 0.00017$

0.017>0.00017

$1.7 \times {10}^{ - 2} > 1.7 \times {10}^{ - 4}$

2)

$4.2 \times {10}^{ - 3} и 4.1 \times {10}^{4}$

$4.2 \times {10}^{ - 3} = 4.2 \times \frac{1}{1000} = 0.0042$

$4.1 \times {10}^{4} = 4.1 \times 10000 = 41000$

0.0042<41000

$4.2 \times {10}^{ - 3} < 4.1 \times {10}^{4}$