Toronto Math Forum
APM3462019 => APM346Lectures & Home Assignments => Topic started by: shuxian 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,xt<0; u=t if x+t>0,xt>0;u=1/2+1/2(x+t) if xt<0,x+t>0. I don't know whether it is right or not.