1.

`lim_(xrarr1) (ax^(2)+bx+c)/(cx^(2)+bx+a)a+b+cne0`

Answer» `underset(xrarr1)"lim"(ax^(2)+bx+c)/(cx^(2)+bx+a),a+b+cne0`
`=(a+b+c)/(c+b+a)=1`


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