Let A=[[3x^2], [1], [6x]],B=[a,b,c]and C...

Let `A=[[3x^2], [1], [6x]],B=[a,b,c]`and `C=[[(x+2)^2, 5x^2, 2x],[5x^2, 2x,(x+2)^2],[ 2x,(x+2)^2, 5x^2]]` be three given matrices, where `a ,b ,ca n dx in Rdot` Given that tr(AB)=tr(C). If `f(x)=a x^2+b x+c ,` then the value of `f(1)` is ______.

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Let `A=[[3x^2], [1], [6x]],B=[a,b,c]`and `C=[[(x+2)^2, 5x^2, 2x],[5x^2, 2x,(x+2)^2],[ 2x,(x+2)^2, 5x^2]]` be three given matrices, where `a ,b ,ca n dx in Rdot` Given that tr(AB)=tr(C). If `f(x)=a x^2+b x+c ,` then the value of `f(1)` is ______.

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