Implement a recursive is_palindrome(s:str)->bool function, which checks if the given string is a palindrome or not. Examples: >>> is_palindrome('racecar') True >>> is_palindrome('racecars') False

Using recursion, write a function sum that takes a single argument n and computes the sum of all integers between 0 and n inclusive. Do not write this function using a while or for loop. Assume n is non-negative. def sum(n): """Using recursion, computes the sum of all integers between 1 and n, inclusive. Assume n is positive.>>> sum(1) 1>>> sum(5) # 1 + 2 + 3+ 4+ 5 15 "*** YOUR CODE HERE ***"

please code in python Write a recursive function to add a positive integer b to another number a, add(a, b), where only the unit 1 can be added, For example add(5, 9) will return 14. The pseudocode is: # Base case: if b is 1, you can just return a + 1 # General case: otherwise, return the sum of 1 and what is returned by adding a and b - 1.

Need help Writing a function, countVowels, that accepts a string as an argument. countVowels should return the number of vowels in that string. Use recursion. example countVowels('Four score and seven years'); // => 9

Write a statement that calls the recursive function backwards_alphabet() with input starting_letter. Sample output with input: 'f f e d b a 344614.2214230.qx3zgy7 1 def backwards_alphabet (curr letter): if curr_letter print(curr_letter) 2 'a': == 3 4 else: print (curr_letter) prev_letter backwards_alphabet (prev_letter) 5 chr (ord(curr_letter) 1) 7 9 starting_letter = input () 10 Your solution goes here ... 11 12

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Write a recursive function that takes as a parameter a nonnegative integer and generates the following pattern of stars. If the nonnegative integer is 4, the pattern generated is as follows: **** *** ** * * ** *** **** Also, write a program that prompts the user to enter the number of lines in the pattern and uses the recursive function to generate the pattern. For example, specifying 4 as the number of lines generates the preceding pattern.