4k^2-4(k+1)(k-3)
求证:lim1^k+2^k+3^k+4^k+.n^k/n^(k+1)=1/k+1
[k*(2-4k)/(1+2k)]+2k+1
4k^2-4(k+1)(k-3)
1^k+2^k+3^k+4^k+5^k.+n^k数列和公式的推导
(k*k*k-2k+4)/4k
4k^3+6k^2+k+1=0.求K~
化简:k-1/k²-4k+4÷1-k/k²-4的结果是( ) A、2-k/k+2 B、k+2/k-2
(4*k^3+11k+12*k^2+3)/(k+1)怎么化简到4(k+1)^2-1?
c语言 求1^k+2^k+3^k+……+n^k,假定n=6,k=4
1k、2k、3k是什么意思
k^4+2k^2-6k-3=0
K-1+K+2+K/3+K*3=2001