(1-1/2²)(1-1/3²)(1-1/4²)...(1-1/10²)求过程,
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(1-1/2²)(1-1/3²)(1-1/4²)...(1-1/10²)求过程,(1-1/2²)(1-1/3²)(1-1/4²).
(1-1/2²)(1-1/3²)(1-1/4²)...(1-1/10²)求过程,
(1-1/2²)(1-1/3²)(1-1/4²)...(1-1/10²)求过程,
(1-1/2²)(1-1/3²)(1-1/4²)...(1-1/10²)求过程,
等于(1-1/2)(1+1/2)(1-1/3)(1+1/3)( 1-1/4)(1+1/4)...(1-1/10²)(1+1/10²)等于1
(1-1/2²)=1-1/2x1/2=3/4 比如1²就1x1 2²就是2x2 祝学习进步
(1-1/2²)(1-1/3²)(1-1/4²)...(1-1/10²)
=(1-1/2)(1-1/3)....(1-1/10)(1+1/2)(1+1/3)....(1+1/10)
=(1/2)*(2/3)*(3/4)....(9/10)*(3/2)*(4/3).....(11/10)
=(1/10)*(11/2)
=11/20
=0.55