lim(1+x^2-cos2x)^(1/lnx),x趋近于0+
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lim(1+x^2-cos2x)^(1/lnx),x趋近于0+lim(1+x^2-cos2x)^(1/lnx),x趋近于0+lim(1+x^2-cos2x)^(1/lnx),x趋近于0+lim(1+x
lim(1+x^2-cos2x)^(1/lnx),x趋近于0+
lim(1+x^2-cos2x)^(1/lnx),x趋近于0+
lim(1+x^2-cos2x)^(1/lnx),x趋近于0+
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