Contact us
Choose a category below so we can get back to you as quickly as possible.
f(x)=/lnx/的影像是把x∈(0,e)的區間上在x軸下麵的部分翻到x軸上方所以y=kx在(0,e)上與f(x)有一個交點在(e,3】上有兩個交點此時聯立兩個方程y=kx和y=lnx PS:此時絕對值可以脫去了要使方程有兩個解得出k的範圍…
We and our partners use cookies and other technologies to analyze traffic and optimize your experience. View more info and control your cookies settings at any time in our Cookies Policy.