f(k)等于k^2+(k+1)^2+.+(3K)^2,则f(4)-f(3)的值是
1个回答
f(4)-f(3)=4^2+5^2+6^2+...+12^2-3^2-4^2-..-9^2=10^2+11^2+12^2-3^2=100+121+144-9
=356
相关问题
设f(k)=1/(k+1)√k+k√k+1,k∈N*,求f(1)+f(2)+f(3)+.+f(n)
f(k)=4k+1/(2k+3)² (k>0)的最大值为?
f(n)=1/2+1/3+1/4 ...+1/(2^n-1) ,则f(k+1)-f(k)=
f(x)=x+k^2-3k+2是奇函数,则k的值为
设函数f(x)=x^2-(3k+2^k)x+3k*2^k若f(1)≤0
定义上N*上函数f(x)满足:f(0)=2,f(1)=3,且f(k+1)=3f(k)- 2f(k-1)(k≥1).求:(
若函数f(x)=kx^3+3(k-1)x^2-k^2+1(k>0)的单调递减区间是(0,4),则k的值是
f(0)=0 f(1)=1 f(k)=f(k-1)+f(k-2) 当K为7的时候等于多少
求助用matlab解m值 (B2/B1+k)*(F1/F2)^m-k*(B3/B2)*(F1/F3)^m-1=0 k=(
已知函数f(x)=kx^3+3(k-1)x^2-k^2+1(k>0)的单调减区间是(0,4),则K的值是?