23-September-2021:
Homework: Sketch graphs of the following functions. Please follow the steps I introduced at the lectures today. Please draw/sketch each graphs separately (one function, one graph). Also explicitly write down the equation(s) of the asymptotic line(s) if exists.
(1) %5E2%7D%7B4(1-x)%7D#card=math&code=y%3D%5Cfrac%7B%281%2Bx%29%5E2%7D%7B4%281-x%29%7D&id=leMq1).
(2) #card=math&code=y%3Dx-%5Cln%281%2Bx%29&id=t5EFW) (here denotes the natural logarithmic function, that is, the base is e ).
(3) #card=math&code=y%3D%5Cln%281%2Bx%5E2%29&id=EidiS).
(4) .
(5) .
Please email your homework to: yqfeng@stu.edu.cn, with subject “homework230921”. You can submit a picture or a scanned copy. Due date: Saturday 25-September, 23:59 (GMT+8).