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(1-1/2²;)(1-1/3²;)……(1-1/2013²;)=(1-1/2)(1+1/2)(1-1/3)(1+1/3)……(1-1/2013)(1+1/2013)=1/2×3/2×2/3×4/3×……×2012/2013×2014/2013=1/2×2014/2013=1007/2013很高興為您解答,【學習寶典】團…
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