D[((1 - [[x + 1][1 - x]]^2)/(1 + [x + 1][1 - x]^2))^3, x]
在求导上面的式子的时候为什么会出现
Syntax::tsntxi: "[[x+1][1-x]]" is incomplete; more input is needed.
Syntax::sntxi: Incomplete expression; more input is needed .

计算的优先级用圆括号
D[((1 - ((x + 1)(1 - x))^2)/(1 + (x + 1)(1 - x)^2))^3, x]