作业帮求和Sn=1+(1+1/2)+(1+1/2+1/4)+.+[1+1/2+1/4.+1/2^(n-1)]求超详细过程 谢谢!
来源：学生作业帮助网 编辑：作业帮 时间：2024/08/05 16:08:30
![求和Sn=1+(1+1/2)+(1+1/2+1/4)+.+[1+1/2+1/4.+1/2^(n-1)]求超详细过程 谢谢!](/uploads/image/z/3275642-2-2.jpg?t=%E6%B1%82%E5%92%8CSn%3D1%2B%281%2B1%2F2%29%2B%281%2B1%2F2%2B1%2F4%29%2B.%2B%5B1%2B1%2F2%2B1%2F4.%2B1%2F2%5E%28n-1%29%5D%E6%B1%82%E8%B6%85%E8%AF%A6%E7%BB%86%E8%BF%87%E7%A8%8B++%E8%B0%A2%E8%B0%A2%21)
x͊0_^rsTnFsZuz"
rwƍ FaZǙ2(z4Iÿj>>զd霥 XYz4ʆfQg^$IMlVkڟ{{Gw]9o57c!;m$͜b7PH >
P hN5F%7`G-ZݬO,h9VM~0 ~4O_lg?wrb:nDw!~O
求和Sn=1+(1+1/2)+(1+1/2+1/4)+.+[1+1/2+1/4.+1/2^(n-1)]求超详细过程 谢谢!
求和Sn=1+(1+1/2)+(1+1/2+1/4)+.+[1+1/2+1/4.+1/2^(n-1)]
求超详细过程 谢谢!
求和Sn=1+(1+1/2)+(1+1/2+1/4)+.+[1+1/2+1/4.+1/2^(n-1)]求超详细过程 谢谢!
或者
Sn=(2-1)+(2-1/2)+(2-1/4)+............{2-1/2^(n-1)}
=2*n-[1+1/2+1/4+..........1/2^(n-1)]
=2n-{2-1/2^(n-1)]
=2n-2+1/2^(n-1)
求和Sn=1-2 3-4+
数列Bn=1/n,求和Sn
数列求和:sn=1+1/2+1/3+…+1/n,求sn
Sn求和 Sn=1+2x3+3x9+4x27+...+nx3的n-1次方
高中数列求和An=1/n,求Sn.
无穷级数证明题正项级数an Sn= 求和an 发散 求证 求和 (a(n+1)/Sn) 也发散
数列求和 bn=4/(n+1)(n+2)数列求和bn=4/(n+1)(n+2),Sn=?
数列求和 用分组求和及并项法求和 Sn=1^2-2^2+3^2-4^2+…+(-1)^(n-1)·n^2
求和,Sn=1+11+111+1111+……+（n个1）求Sn
数列求和：Sn=1/1*2*3+1/2*3*4+.+1/n*(n+1)*(n+2) 求Sn
利用等差数列求和公式Sn=n(a1+an)/2证明Sn=na1+n(n-1)/2*d
求和：sn=1/2^2-1+1/4^2-1+.1/(2n)^2-1
求和Sn=1/1*4+1/4*7+.1/(3n-2)(3n+1)
求和Sn=1/(1*4)+1/(2*7)+.+1/n*(3n+1)
求和Sn=1/(1*4)+1/(2*7)+.+1/n*(3n+1)
求和Sn=1-3+5-7+...+(-1)^(n-1)(2n-1)
sn=1*n+2(n-1)+3(n-2)+……+n*1 求和
求和：Sn=1*n+2*(n-1)+3*(n-2)+……+n*1