杨辉三角33行以后的部分?
谁知道?
参考答案:第n行为(a+b)^(n-1)的系数
33行:c(32,32),c(32,31),c(32,30)....c(32,1),1
即:1,32,496,....496,32,1(共33项)
34行:c(33,33),c(33,32),c(33,31),...(c(33,1),1
即:1,33,528...528,33,1(共34项)
......
谁知道?
参考答案:第n行为(a+b)^(n-1)的系数
33行:c(32,32),c(32,31),c(32,30)....c(32,1),1
即:1,32,496,....496,32,1(共33项)
34行:c(33,33),c(33,32),c(33,31),...(c(33,1),1
即:1,33,528...528,33,1(共34项)
......