(125)^2/3+(1/2)^-2+log7(343)-(1/27)^-1/3,
问题描述:
(125)^2/3+(1/2)^-2+log7(343)-(1/27)^-1/3,
答
(125)^2/3+(1/2)^-2+log7(343)-(1/27)^-1/3
=(5^3)^2/3+4+log7(7^3)-(3^-3)^-1/3
=25+4+3-3
=29