(-2)^-2 +1- 27的立方根 (-3/1)

(-2)^-2 +1- 27的立方根 (-3/1)^-3

1个回答

(-2)^-2 +1- 27的立方根 (-1/3)^-3
=1/4+1-3(-27)
=1/4+1+81
=82又1/4
(原题最后27的立方根 (-1/3)^-3之间无运算符号,故看成省略乘号)