问题标题:
y=e^x*In(x+1)的二阶导数,
问题描述:
y=e^x*In(x+1)的二阶导数,
操先良回答:
由y=e^x*In(x+1)y`=(e^X)`ln(x+1)+e^x*(ln(x+1))`用积的求导公式(uv)`=u`v+uv`y`=e^x*In(x+1)+e^x/(x+1)y``=[e^x*In(x+1)]`+[e^x/(x+1)]`y``=e^x*In(x+1)+e^x/In(x+1)+(e^x(x+1)-e^x)/(x+1)²用商的求导公...
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