【1.求解Y=LN(2X-1)的导数,请写出具体步骤;2.求解Y=1除以根号以下(1-X平方)的导数,请写出具体步骤;3.求解Y=LN(a平方-b平方)的导数,请写出具体步骤;4.求解Y=e的负X平方乘以LN(1-X)的导】
1.求解Y=LN(2X-1)的导数,请写出具体步骤;
2.求解Y=1除以根号以下(1-X平方)的导数,请写出具体步骤;
3.求解Y=LN(a平方-b平方)的导数,请写出具体步骤;
4.求解Y=e的负X平方乘以LN(1-X)的导数,请写出具体步骤;
【1.求解Y=LN(2X-1)的导数,请写出具体步骤;2.求解Y=1除以根号以下(1-X平方)的导数,请写出具体步骤;3.求解Y=LN(a平方-b平方)的导数,请写出具体步骤;4.求解Y=e的负X平方乘以LN(1-X)的导】
1.求解Y=LN(2X-1)的导数,请写出具体步骤;
2.求解Y=1除以根号以下(1-X平方)的导数,请写出具体步骤;
3.求解Y=LN(a平方-b平方)的导数,请写出具体步骤;
4.求解Y=e的负X平方乘以LN(1-X)的导数,请写出具体步骤;
4题都用链式法则:df[g(x)]/dx=df[g(x)]/d[g(x)]*d[g(x)]/dx
1.y=ln(2x-1)
dy/dx=dln(2x-1)/d(2x-1)*d(2x-1)/dx
=1/(2x-1)*2
=2/(2x-1)
2.y=1/√(1-x²)
dy/dx=[-d√(1-x²)/dx]/[√(1-x²)]²
=[-d√(1-x²)/d(1-x²)*d(1-x²)/dx]/(1-x²)
=-1/[2√(1-x²)*(-2x)/(1-x²)
=x/(1-x²)^(3/2)
3.y=ln(a²-b²)
对x求导?结果=0
4.y=[e^(-x²)]ln(1-x)
dy/dx=ln(1-x)*d[e^(-x²)]/dx+[e^(-x²)]*dln(1-x)/dx
=ln(1-x)*d[e^(-x²)]/d(-x²)*d(-x²)/dx+[e^(-x²)]*dln(1-x)/d(1-x)*d(1-x)/dx
=ln(1-x)*e^(-x²)*(-2x)+e^(-x²)*1/(1-x)*(-1)
=[e^(-x²)]/(x-1)-2x[e^(-x²)]ln(1-x)