?1-1/2²??1-1/3²??1-1/4²?…?1-1/100²?

日期:2021-06-05 06:06:34 人气:1

?1-1/2²??1-1/3²??1-1/4²?…?1-1/100²?

?1-1/2²??1-1/3²??1-1/4²?…?1-1/100²?=(1+1/2)(1-1/2)(1+1/3)(1-1/3)(1+1/4)(1-1/4)……(1+1/100)(1-1/100)=3/2*1/2*4/3*2/3*5/4*3/4*.........*101/100*99/100=(1/2*2/3*3/
    A+
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