高数2对数计算2ln|x|+c1=-ln[(u-1/2)^2+3/4]C/x^2=(u-1/2)^2+3/42ln|x|+c1怎么变成C/x^2
问题描述:
高数2对数计算
2ln|x|+c1=-ln[(u-1/2)^2+3/4]
C/x^2=(u-1/2)^2+3/4
2ln|x|+c1怎么变成C/x^2
答
2ln|x|+C1
=ln(|x|)^2 +lnC
=lnx^2+lnC
=lnCx^2