19-8) isMember FunctionWrite a recursive Boolean function named isMember. The function should accept three arguments: an int array, an int index number holding the size of the array and an int value to be searched for. The function should return true if the value is found in the array, or false if the value is not found in the array. Demonstrate the function in a driver program.---------------------ORIGINAL QUESTION (Had no index variable and no type on the array)-------------19-6) Recursive Power FunctionWrite a function that uses recursion to raise a number to a power. The function should accept two arguments: the number to be raised and the exponent. Assume that the exponent is a nonnegative integer. Demonstrate the function in a program.C++