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#1 Help Me ! » Please solve my question » 2007-07-10 02:59:47

stevengoh911
Replies: 6

Given
x,y ∈ [0,2c]
f(x),g(y) ∈ [0,2c]
Show
| xy-f(x)+g(y)|≥ c²
exist

I don't really get this question.
Please help me

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