(-1/3n^3)-(-1/3(n-1)^3)等于?
来源:学生作业帮助网 编辑:六六作业网 时间:2024/11/22 12:27:21
(-1/3n^3)-(-1/3(n-1)^3)等于?(-1/3n^3)-(-1/3(n-1)^3)等于?(-1/3n^3)-(-1/3(n-1)^3)等于?原式=-1/3[n^3-(n-1)^3]=-
(-1/3n^3)-(-1/3(n-1)^3)等于?
(-1/3n^3)-(-1/3(n-1)^3)等于?
(-1/3n^3)-(-1/3(n-1)^3)等于?
原式=-1/3[n^3-(n-1)^3]
=-1/3[n-(n-1)][n^2+n(n-1)+(n-1)^2]
=-1/3(3n^2-n+1)
=-n^2+1/3n-1/3.
证明不等式:(1/n)^n+(2/n)^n+(3/n)^n+.+(n/n)^n
判断 当n>1时,n*n*n>3n.( )
[3n(n+1)+n(n+1)(2n+1)]/6+n(n+2)化简
[3n(n+1)+n(n+1)(2n+1)]/6+n(n+2)化简
化简n分之n-1+n分之n-2+n分之n-3+.+n分之1
化简n分之n-1+n分之n-2+n分之n-3+.+n分之1
化简(n+1)(n+2)(n+3)
当n为正偶数,求证n/(n-1)+n(n-2)/(n-1)(n-3)+...+n(n-2).2/(n-1)(n-3)...1=n
lim2^n +3^n/2^n+1+3^n+1
lim(n+3)(4-n)/(n-1)(3-2n)
lim(n^3+n)/(n^4-3n^2+1)
3(n-1)(n+3)-2(n-5)(n-2)
n(n+1)(n+2)(n+3)+1 因式分解
n(n+1)(n+2)(n+3)+1等于多少
lim[(n+3)/(n+1))]^(n-2) 【n无穷大】
lim(2^n+3^n)^1
(n趋向无穷)
级数n/(n+1)(n+2)(n+3)和是多少
n*1+n*2+n*3+n*4.求公式