Question: (4) Construct a function f:DfR with DfsubeR2 for which[3]lim(x,y)(0,0)f(x,y)=1 on the x axis,andlim(x,y)(0,0)f(x,y)=-7 on the y axis.
(4) Construct a function f:DfR with DfsubeR2 for which[3]lim(x,y)(0,0)f(x,y)=1 on the x axis,andlim(x,y)(0,0)f(x,y)=-7 on the y axis.
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