Question: Hi , it's a question from Calculus 3 Let f : A R 2 a continuous function on A. Let u , v A ,

Hi , it's a question from Calculus 3

Let f:AR2a continuous function on A. Let u,vA, such that f(u)<0,f(v)>0.

Prove that if A is path-connected, then there exists x0A, such thatf(x0)=0

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