若K>0.则2K+1/K>=2根号2.为何
k+1/2根号k+1=
代数式K/K-5-2与K+1/K的值互为相反数,则K=?
1若3k(2K-5)+2k(1-3k)=52,则k=____.
若3k(2k-5)+2k(1-3k)=52,则K等于多少?
请问1^k+2^k+3^k+.+n^k=?
3×k×k-2k-1=-1.k等于
K-1+K+2+K/3+K*3=2001
K为何值时,分式方程K/(X-2)=k+1/(x-2)无解
k为何值时,方程kx²-(2k+1)x+k-1=0
当k为何值时,方程2/3X-3k=5(x-k)+1
证明(K/K+1)+{1/(K+1)(K+2)}=(K+1)/K+2
k为何值时,方程(k-1)x^2-(2k+3)x+(k+3)=0有实数根