Questin 4 plz

RAMMING-EXERCISES 451 uses the function ispalindzome given in 1Exampemada abba,22", 67876 444244and Write -6 (Palindrome, lest Your program on the followin a program that uses the function trymeuemyrt Modify the function determmnin and lowercase letters are considered the same. isPalindrome of Example 6-6 so that when ether a string is a palindrome, cases are ignored, that is value-returning function, isvowel, that returns the v te a 2. Write a character is a vowel and otherwise returns talse. alue teue if a te a program that prompts the user to input a sequence of characterns and the number of vowels. (Use the function isVowel witten in 3. Write Programming Exercise 2.) named constant PI, const double 4159; which stores the value of ?. The program should use PI 4. Write a program that defines the and the functions listed in Table 6-1 to accomplish the following a. Output the value of VE. Prompt the user to input the value of a double variable r, which stores the radius of a sphere. The program then outputs the following 1. The value of 4t?, which is the surface area of the sphere i. The value of (4/3)n, which is the volume of the sphere. a circle, or the volume of a cylinder. However, (a) the statements are in the incorrect order; (b) the function calls are incorrect; () the logical expression in the while loop is incorrect; and (d) the function definitions are incorrect. Rewrite the program so that it works correctly. Your program must be properly indented. (Note that the program is menu driven and allows the user to run the program as long as the user wishes) #include s. The following program is designed to find the area of a rectangle, the area of using namespace std: const double PI 3.1419 e rectangle (double 1, double w)i finclude int main () double radius; double heighti