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("lim")(x->oo){(x^3+1)/(x^2+1)-(a x+b...

`("lim")_(x->oo){(x^3+1)/(x^2+1)-(a x+b)}=2,t h e n` (a)`a=1,b=1` (b) `a=1,b=2` (c)`a=1,b=-2` (d) none of these

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