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Let Delta(x)=|(x^2-1,x+1,x-2),(2x^2-1,3x...

Let `Delta(x)=|(x^2-1,x+1,x-2),(2x^2-1,3x,3x-3),(x^2+4,2x-1,2x-1)|.` Prove, by using calculus, that `Delta(x)` is a first degree polynomial.

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A DAS GUPTA-Differentiation-Exercise
  1. If fr(x),gr(x),hr(x),r=1,2,3 are polynomials such that fr(a)=gr(a)=h ,...

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