Question

Cum se poate calcula? Va rog daca puteti sa imi si explicati
Multumesc​

Answer 1

 

$\displaystyle\bf\\In~loc~de~~a:b~~voi~folosi~~\frac{a}{b}\\\\a)\\10^{60}:(2\cdot5)^{58}=\frac{10^{60}}{(2\cdot5)^{58}}=\frac{10^{60}}{10^{58}}=10^{60-58}=10^2=100\\\\\\b)\\\Big(7^{14}\cdot5\Big)^2:7^{26}=\frac{\Big(7^{14}\cdot5\Big)^2}{7^{26}} =\frac{7^{14\cdot2}\cdot5^2}{7^{26}}=\\\\\\=\frac{7^{28}\cdot5^2}{7^{26}}=7^{28-26}\cdot5^2=7^2\cdot5^2=49\cdot25=1225$