Find (work out) the complexity: a) $T 1=\sum_{i=1}^{n} \log i$ b) $T 2=2^{2 \mathrm{N}}$ c) Is $\mathrm{T) 3=\mathrm{n} \log \mathrm{n}=\mathrm{0}\left\mathrm{n}^{2} ight $ ? SE. SD.0371