limx→∞ (x^2-x+1)(3-sinx)/x^3+2
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limx→∞(x^2-x+1)(3-sinx)/x^3+2limx→∞(x^2-x+1)(3-sinx)/x^3+2limx→∞(x^2-x+1)(3-sinx)/x^3+2lim(x^2-x+1)(
limx→∞ (x^2-x+1)(3-sinx)/x^3+2
limx→∞ (x^2-x+1)(3-sinx)/x^3+2
limx→∞ (x^2-x+1)(3-sinx)/x^3+2
lim (x^2-x+1)(3-sinx)/(x^3+2)
= lim (1-1/x+1/x^2)(3-sinx)/(x+2/x^2) = 0
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