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I am using the lagrangian to find the minmum of the function:

min f(x₁,x₂)=1/(3+x₁)+7/(2+x₂)  s.t    x₁+x₂=4 

Then the lagrangian is

L(x,λ)=1/(3+x₁)-λx₁+7/(2+x₂)-λx₂+4λ 

I am stuck at this point because the standard method for solving grad L is tricky.

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2 Answers 2