问题描述:
求导:y=ln(x+√(a^2+x^2))
ineedprocessanddetailedstepsifnecessary.
问题:
问题描述:
求导:y=ln(x+√(a^2+x^2))
ineedprocessanddetailedstepsifnecessary.
潘晨回答:
y'=[1/(x+√(a^2+x^2))]*[x+√(a^2+x^2)]'
=[1/(x+√(a^2+x^2))]*[1+2x/2√(a^2+x^2)]
=[1/(x+√(a^2+x^2))]*[(√(a^2+x^2)+x)/√(a^2+x^2)]
=1/√(a^2+x^2)