305. A program that runs in parts on several computers is said to be a. delegated b. spread c. distributed d. recursive

2. Sum: a recursive function that computes the sum of integers 1, 2, 3, …., n for a given number n. So Sum(6) should return 1 + 2 + 3 + 4 + 5 + 6 , i.e. 21.sum(n) = n + sum(n-1)

Write a recursive function to see if the first letter matches the last letter, return the middle letters and check until only 0 or 1 letters are left. It returns True or False. Here is the original code that needs to be checked: # Returns the first character of the string str def firstCharacter(str):     return str[:1] # Returns the last character of a string str def lastCharacter(str):     return str[-1:] # Returns the string that results from removing the first #  and last characters from str def middleCharacters(str):     return str[1:-1] def isPalindrome(str):     # base case #1     # base case #2     # recursive case     pass   Python code

Write a recursive function (Java) called Fac which takes one positive integer argument (n) and returns n! You may not use a built-in factorial method or function.