where A and B are components of vector A and B respectively. Write pseudocode to calculate cosine similarity of two vectors A and B. it should take two arrays of numbers, A and B, as arguments and return a single value, their cosine similarity. Big-O analysis (Worst Case Time Complexity) a. Find the worst case runtime (big-O notation) for the following pseudo code which returns true if an integer n is prime, false if it is not prime. procedure isPrime(n) if n = 1 return false else if n