Hello! I need help we the entire question.Thank you! a. Explain why ( 5 n=Oleft(n^{2} ight) ) but ( 5 n eq thetaleft(n^{2} ight) ).

Hello! I need help we the entire question.Thank you! a. Explain why \( 5 n=O\left(n^{2}\right) \) but \( 5 n eq \theta\left(n^{2}\right) \). [4 marks] b. What is the running time of SUM? Show your working. function \( \operatorname{SUM}(n) \) if. \( ( 1 answer