Complete the function that calculates the sum of the first n+2 terms of the geometric series Note that the series begins with a and the last term is ar+1, in total there are n+2 terms. 1:# complete the function given the variables a,r,n and return the value as series_sum. def sum_geometric_series (a,r,n): series_sum=0 # Initiation of the value # YOUR CODE HERE a, ar, arar, ar... ar", ar+1 return series_sum print (sum_geometric_series (2, 2,10)) >