\( \definecolor{colordef}{RGB}{249,49,84} \definecolor{colorprop}{RGB}{18,102,241} \)
Let \(A(1,2)\), \(B(4,4)\), \(C(5,1)\) and \(D(3,4)\).
Demonstrate that the vectors \(\Vect{AB}\) and \(\Vect{CD}\) are orthogonal.
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