Question

найдите значение выражения
(2^4/7 * 9^2/3)^21 / (-18)^13

Answer 1

$=2^{(4/7*21)}*9^{(2/3*21)}/(-18)^{13}= \ =2^{(12)}*9^{(14)}/(-18*18^{(12)})= \ =18^{(12)}*9{(^2)}/(-18*18^{(12)})= \ 81/(-18)=-4,5$