1 1 …1 2 2^2 …2^n 3 3^2 …3^n … n n^2 … n^n 行列式求值
(1/(n^2 n 1 ) 2/(n^2 n 2) 3/(n^2 n 3) ……n/(n^2 n n)) 当N越于无穷大
计算行列式1 2 3 …n-1 n
证明不等式:(1/n)^n+(2/n)^n+(3/n)^n+.+(n/n)^n
n阶行列式计算 1 2 3…n-1 n -1 0 3 …n-1 n -1 -2 -3 …0 n -1 -2 -3 …-(
线性代数求n阶行列式row1:1 2 3 4 … n-2 n-1 n.row2:2 3 4 5 … n-1 n 1.ro
求极限Xn=n/(n^2+1)+n/(n^2+2)+n/(n^2+3)+……+n/(n^2+n),
用数学归纳法证明:1×2×3+2×3×4+…+n×(n+1)×(n+2)=n(n+1)(n+2)(n+3)4(n∈N
证明1/(n+1)+1/(n+2)+1/(n+3)+……+1/(n+n)
lim(1/n^2+4/n^2+7/n^2+…+3n-1/n^2)
VB编程n!+(n+1)!+(n+2)!+(n+3)!+……+(n+m)!
计算:C(1,n)+2C(2,n)+3C(3,n) + … + nC(n,n)
用数学归纳法证明:(n+1)+(n+2)+…+(n+n)=n(3n+1)2