f(x)=e^x*lnx
f(1)=e*ln1=0
f'(x)=e^xlnx+e^x*1/x
切线的斜率k=f'(1)=0+e^1=e
切线方程:y-0=e(x-1),即y=ex-e
函数f[x]=e的x次方乘以lnx在点[1,f[1]]处的切线方程是什么
函数f[x]=e的x次方乘以lnx在点[1,f[1]]处的切线方程是什么
数学人气:631 ℃时间:2020-02-03 01:47:34
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