The Maclaurin (Taylor) series of cos(x): COS x = (-1)" n=0 (2n)! n Assume That cos (X) is a sum of elements and and n Increases from 0 to N. Derive the formula for the element an as a function of a n-1. Determine the value of a 0. Please, write below most important steps in the formula transformation. Remember to use brackets, so it is clear which elements are in the denominator etc.