1/1*3+1/3*5+1/5*7+…+1/101*103怎么做?
1个回答
1/1*3+1/3*5+1/5*7+…+1/101*103
=1/2*(1-1/3+1/3-1/5+.+1/101-1/103)
=1/2*(1-1/103)
=1/2*102/103
=51/103
相关问题
1/1*3*5+1/3*5*7+.1/99*101*103
1/3*5+1/5*7+1/7*9+………+1/101*103的值
1+3+5+7+9+……+101+103+105=?
1/1×3+1/3×5+1/5×7+.+1/99×101怎么做
1+3+5+7...+99=?101+103+105.+199=?
1/3+1/3*5+1/5*7.1/99*101
1/1*3 + 1/3*5 + 1/5*7 + .+ 1/99*101
1/1*3+1/3*5+1/5*7+.+1/99*101
1+3+5.+99=?101+103+105.+199=?
1+1/1*3+1/3*5+1/5*7+1/7*9+……+1/99*101=?