(3k^2+7k)+(4k^2-3k+1)
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(4k^2+7k)+(-k^2+3k-1)
3×k×k-2k-1=-1.k等于
请问1^k+2^k+3^k+.+n^k=?
2k/(3k-1)=4k/(3k+2)求k
k(k+2)(2k+5)+3 如何变成 (k+1)(k+3)(2k+1)
(3k^2+7k)+(4k^2-3k+1)
4k^2-4(k+1)(k-3)
数式变形(1) K^3-2K+4/K
求证:lim1^k+2^k+3^k+4^k+.n^k/n^(k+1)=1/k+1n是正整数,后面的k+1有括号的
当k等于?时,3k(2k-5)+2k(1-3k)=52
证明:1/(3k+2)+1/(3k+3)+1/(3k+4)>1/(k+1)
数学方程求解1-2k+k^2-2k^3-k^4=0
4k^3+12k^2+11k+3怎样写(k+1)(...)的形式?
k-4-2k|/√(k^2+1)= 3 K=?
4k^3+6k^2+k+1=0.求K~
[k*(2-4k)/(1+2k)]+2k+1
-4-2k|/√(k^2+1)= 3 K=?|-k-4-2k|/√(k^2+1)= 3 K=?
(4*k^3+11k+12*k^2+3)/(k+1)怎么化简到4(k+1)^2-1?