lim(1+3/x^2)^sin^2x x趋近正无穷lim(1+3/x^2)^sin^2x x趋近正无穷
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lim(1+3/x^2)^sin^2x x趋近正无穷lim(1+3/x^2)^sin^2x x趋近正无穷
lim(1+3/x^2)^sin^2x x趋近正无穷
lim(1+3/x^2)^sin^2x x趋近正无穷
lim(1+3/x^2)^sin^2x x趋近正无穷lim(1+3/x^2)^sin^2x x趋近正无穷
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