1. ## Big-O

1. Determine whether $f(x) = x \log x$ is $O(x^2)$. So $|f(x)| = |x \log x| < x^2$ for $x>1$ and $C=1$. Thus it is $O(x^2)$.

Is this correct?

2. Originally Posted by Sampras
1. Determine whether $f(x) = x \log x$ is $O(x^2)$. So $|f(x)| = |x \log x| < x^2$ for $x>1$ and $C=1$. Thus it is $O(x^2)$.

Is this correct?
Yes it is.