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設f(x)=|x²-4|，求f'(2)=？282Please respect copyright.ＰＥＮＡＮＡJcTHpLR1XB
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我會不會下手重了點www 不太老少咸宜282Please respect copyright.ＰＥＮＡＮＡCiZBjBIY9I
8964 copyright protection278ＰＥＮＡＮＡtwQiIE7JJH 維尼

但這題的答案蠻簡單的282Please respect copyright.ＰＥＮＡＮＡVwtiPZld2H
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