1) Complete the Python function that begins with the header shown below. This function computes an approximation to ex using the equation given below. x4 x x3 ex = 1 + x + + + + ... 2! 3! 4! This function is given the values of x and tolerance as floats. Add terms to the summation as long as the absolute value of the current term is greater than the tolerance. Count the number of terms added to the sum. Return the sum of the series as the approximate value of e' followed by the number of terms added to the sum. Hint: Use floats to compute the approximate value of ex. def etox (x, tolerance)