(6m-1)k^2-5/(3k^2+1)怎么化简
[k(k+1)/12](3k^2+11k+10)+(k+1)(k+2) 怎么化简
1k、2k、3k是什么意思
当k等于?时,3k(2k-5)+2k(1-3k)=52
K-1+K+2+K/3+K*3=2001
请问1^k+2^k+3^k+.+n^k=?
3×k×k-2k-1=-1.k等于
1^k+2^k+3^k+.+n^k 有无表达式
计算2/(k+1)(k+3) +2/(k+3)(k+5)+…+2/(k+2003)(k+2005)
1^k+2^k+3^k+4^k+5^k.+n^k数列和公式的推导
解方程:{(2-3k)/(k+1)-(3k+2)/(1-k)}的平方+{(5k)/(k+1)-(5k)/(1-k)}的平
(4*k^3+11k+12*k^2+3)/(k+1)怎么化简到4(k+1)^2-1?
求证:lim1^k+2^k+3^k+4^k+.n^k/n^(k+1)=1/k+1