y等于根号1一x的2来次方再乘arcCosx求导
问题描述:
y等于根号1一x的2来次方再乘arcCosx求导
答
y=√(1-x²)*arccosxy'=[√(1-x²)]'arcsosx+√(1-x²)*(arccos)'=(1/2)*(1-x²)ˆ(-1/2)*(1-x²)’+√(1-x²)*[-1/√(1-x²)]=(1/2)*(1-x²)ˆ(-1/2)*(-2x...