Author Topic: Final Exam Practice problems  (Read 440 times)

shuxian

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Final Exam Practice problems
« on: April 02, 2019, 04:47:53 PM »
Anyone can give me a hint about Q4 uxy=0 uyz=0 and uzx=1? Thank you.
For Q13, my answer is u=1 if x=t<0,x-t<0; u=t if x+t>0,x-t>0;u=1/2+1/2(x+t) if x-t<0,x+t>0. I don't know whether it is right or not.