Give the asymptotic complexity of each of the following functions in simplest terms

4. Prove the following: If f(n) 0(g(n)) and g(n) O(h(n)), then f(n) O(h(n)). 5. Let f(n) = (21 n +8n) x (log (3n+2)) and g(n) = n 2 log2 (6n130 +n22) x log2 (740+1300). Prove that f(n) 12(g(n))