1/(1*2*3*4) + 1/(2*3*4*5) + 1/(3*4*5*6 )+…+ 1/(11*12*13*14)
来源:学生作业帮助网 编辑:作业帮 时间:2024/07/06 20:32:34
![1/(1*2*3*4) + 1/(2*3*4*5) + 1/(3*4*5*6 )+…+ 1/(11*12*13*14)](/uploads/image/z/1766974-22-4.jpg?t=1%2F%EF%BC%881%2A2%2A3%2A4%EF%BC%89+%2B+1%2F%282%2A3%2A4%2A5%EF%BC%89+%2B+1%2F%EF%BC%883%2A4%2A5%2A6+%EF%BC%89%2B%E2%80%A6%2B+1%2F%2811%2A12%2A13%2A14%29)
1/(1*2*3*4) + 1/(2*3*4*5) + 1/(3*4*5*6 )+…+ 1/(11*12*13*14)
1/(1*2*3*4) + 1/(2*3*4*5) + 1/(3*4*5*6 )+…+ 1/(11*12*13*14)
1/(1*2*3*4) + 1/(2*3*4*5) + 1/(3*4*5*6 )+…+ 1/(11*12*13*14)
1/(1*2*3*4)=1-1/2-1/3-1/4
剩下 靠自己吧