1.

Let |{:(x^(2)+x+1,x+1,2x-3),(3x^(2)-1,x+2,x-1),(x^(2)+5x+1,2x+3,x+4):}|=ax^(4)+bx^(3)+cx^(2)+dx+e be an identity in x. If a,b,c,d are known, then the value of e is

Answer»

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9

Answer :B


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