(1-2的平方分之1)×(1-3的平方之1)×……×(1-100的平方分之1)
=(1+1/2)×(1-1/2)×(1+1/3)×(1-1/3)×……×(1+1/100)×(1-1/100)
=(3/2×4/3×……×101/100)×(1/2×2/3×……×99/100)
=101/2×1/100
=101/200
(1-2的平方分之1)×(1-3的平方之1)×……×(1-100的平方分之1)
=(1+1/2)×(1-1/2)×(1+1/3)×(1-1/3)×……×(1+1/100)×(1-1/100)
=(3/2×4/3×……×101/100)×(1/2×2/3×……×99/100)
=101/2×1/100
=101/200