求cos^(-1)(2-x^2)的导数

问题描述:

求cos^(-1)(2-x^2)的导数

[-2xsin(2-x^2)]/[cos(2-x^2)]^2有过程吗希望我的解答没错,能给你带来帮助:=﹛-[cos(2-x^2)]^-2﹜*[-sin(2-x^2)]*[-2x]=[-2xsin(2-x^2)]/[cos(2-x^2)]^2记不得这叫换元啥的了……抱歉