Problem 3 Write a function that takes a list as input. The function should return a new list with all of the duplicate elements in the original list removed. The returned list should contain only the first instance of each digit from the input list (in their original order). E.g.: removeDuplicates ([1,5,3,1,2,7,1,3,51)[1,5,3,2,7 Problem 4 Write a function that takes a string as input and returns True if the string is a palindrome. A palindrome is a word or phrase that spells the same thing forwards or backwards (ignoring spaces) E.g.: palindrome ( noon, ) True palindrome('racecar') > True palindrome('taco cat) True palindrome('python is fun) False