- #1
Petkovsky
- 62
- 0
I have to prove that 2^n > n^2 for every n>=5
So...
2^k > k^2 /log base 2
log2(2^k) > log2(k^2)
k*log2(2) > 2*log2(k)
k/2 > log2(k)
So I'm stuck here and I am having problems solving for k, since i have it on both sides. I just need someone to gimme a slight push :)
So...
2^k > k^2 /log base 2
log2(2^k) > log2(k^2)
k*log2(2) > 2*log2(k)
k/2 > log2(k)
So I'm stuck here and I am having problems solving for k, since i have it on both sides. I just need someone to gimme a slight push :)