Write a program in C language  using  recursive function that calculates the sum of the first n elements from Harmonic series and print the sum  from the main fucntion, Also the function display the series elements. n is enterde by user. The nth Harmonic sequence element is calculate as 1/(a+(n-1)d). cinsider      a = 1 , d = 1 , and n > 0

Write a C++ recursive function int fib(int n) that returns the value of the n’th Fibonaccinumber . Do not use a loop. Test it in the main program, not in the function.The Fibonacci sequence is0 1 1 2 3 5 8 13 21…Each Fibonacci number is the sum of the preceding two Fibonacci numbers.

Given the following pseudocode: function fun(n) { var outer_count=0; var inner_count=0; var sum = 0; for (var i=0; i 0, as an expression of normal arithmetic and n, what is the value of outer_count that counts the number of times the outer loop executes? Enter an expression Fun.1.inner: Assuming n EN and n > 0, as an expression of normal arithmetic and n, what is the value of inner_count that counts the number of times the inner loop executes? Enter an expression

Please only do rec_sum_digits function in python using only recursive and no loop