Question

Вычислите 49*7^11
_____
(7^3)^4

Answer 1

$\tt \cfrac{49\cdot7^{11}}{(7^3)^4} =\cfrac{7^2\cdot7^{11}}{7^{3\cdot4}} =\cfrac{7^{2+11}}{7^{12}} =\cfrac{7^{13}}{7^{12}} =7^{13-12}=7$