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Apr3-11, 04:48 AM
P: 15
What I did:

u = x+y
x = u-y
y = u-x

x [tex]\geq[/tex] 0
y [tex]\geq[/tex] 0
y [tex]\leq[/tex] 1-x

u-y [tex]\geq[/tex] 0 [tex]\rightarrow[/tex] u [tex]\geq[/tex] y
u-x [tex]\geq[/tex] 0 [tex]\rightarrow[/tex] u [tex]\geq[/tex] x
u <= 1

x [tex]\in[/tex] [0,1]
y [tex]\in[/tex] [0,1]


u [tex]\in[/tex] [0,1]

And I don't know what to do about the integral and the Jacobian, etc :(

what to you think about?

Ps: OMG, tex isn't working :(