1⼀(1×2)+1⼀(2×3)+1⼀(3×4)++1⼀(99×100)

1/(1×2)+1/(2×3)+1/(3×4)++1/(99×100)求解答
2024-12-28 07:23:16
推荐回答(2个)
回答1:

原式=1-1/2+1/2-1/3+...+1/99-1/100
=1-1/100
=99/100

回答2:

=1-1/2+1/2-1/3+1/3-1/4+……+1/99-1/100
=1-1/100
=99/100
(1/(1*2)=1-1/2,1/(2*3)=1/2-1/3,……)