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## Main Question or Discussion Point

Hello. I am trying to work out what the region

[tex]\{0\leq\tau\leq t,0\leq t<\infty\}[/tex] Is under the transformation:

[tex]t=u+v,\tau=v[/tex]

I know its just

[tex]\{0\leq u<\infty,0\leq v<\infty\}[/tex]

But i am having difficulty showing this.

Thanks.

[tex]\{0\leq\tau\leq t,0\leq t<\infty\}[/tex] Is under the transformation:

[tex]t=u+v,\tau=v[/tex]

I know its just

[tex]\{0\leq u<\infty,0\leq v<\infty\}[/tex]

But i am having difficulty showing this.

Thanks.