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If fr (x), gr (x), hr(x) r=1,2,3 are pol...

If `f_r (x), g_r (x), h_r(x) r=1,2,3` are polynomials in x. Such that `f_r(a)=g_r (a)=h_r (a)` and `F(x)=|{:(f_1(x),f_2(x),f_3(x)),(g_1(x),g_2(x),g_3(x)),(h_1(x),h_2(x),h_3(x)):}|` Find F.(x) at x=a

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