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Seleot the Lagrange form of the interpolating polynomial for f passing through the points (1,),(0,),(1,). f(x)=2(x)(x1)+1(x+1)(x1)+2(x+1)(x)f(x)=2(x)(x1)+1(x+1)(x1)+2(x)(x+1)f(x)=2(x+1)(x21)(1)+1(x0)(x20)(0)+2(x1)(x21)(1)f(x)=2(x)(x)+1(x)(x)+2(x)(x)