作业帮x分之2+x(x-2)分之2+(x-2)(x-4)分之2+…+(x-98)(x-100)分之2
来源：学生作业帮助网 编辑：作业帮 时间：2024/11/24 08:48:51
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x分之2+x(x-2)分之2+(x-2)(x-4)分之2+…+(x-98)(x-100)分之2
x分之2+x(x-2)分之2+(x-2)(x-4)分之2+…+(x-98)(x-100)分之2
x分之2+x(x-2)分之2+(x-2)(x-4)分之2+…+(x-98)(x-100)分之2
x分之2+x(x-2)分之2+(x-2)(x-4)分之2+…+(x-98)(x-100)分之2
=2/x+1/x-1/(x-2)+1/(x-2)-1/(x-4)+…+1/(x-98)-1/(x-100)
=2/x-1/(x-100)
=(x-200)/[x(x-100)]