16. Complete the Python function that begins with the header shown below. The function computes an approximation to cos(x). The function is given the value ofx and a tolerance. Add terms to the summation as long as the absolute value of the current term is greater thantolerance. Count the number of terms added to the sum. Return the sum of the series and the number of terms added the sum. You must compute the next term by multiplying the previous term by an expression. Calculating the terms independent of each other will not be accepted. Use floats to compute the [5] sum of the series. cos(x)=1-2-41-61+ def Cosine (x,tolerance)