limx趋向于无穷(2xsin(2/x))的极限计算步骤
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limx趋向于无穷(2xsin(2/x))的极限计算步骤
limx趋向于无穷(2xsin(2/x))的极限计算步骤
limx趋向于无穷(2xsin(2/x))的极限计算步骤
limx→∞(2xsin(2/x))=limx→∞(sin2/x)/(1/2x) =limx→∞(2/x)/(1/2x)=4
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