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If f(x)={{:(mx^(2)+n",",xlt0),(nx+m",",0...

If `f(x)={{:(mx^(2)+n",",xlt0),(nx+m",",0lexle1),(nx^(3)+m",",xgt1):}`. For what integers m and n does both `lim_(xrarr0)f(x) and lim_(xrarr1)f(x)` exist?

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The correct Answer is:
n+m
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