Python problemMake a function defined as: def GaussIntegration(fcn, a, b, n=4):Purpose: use the Gauss Integration method to estimate the integral of fcn(x), between the limits of a and b

Python problemMake a function defined as: def GaussIntegration(fcn, a, b, n=4):Purpose: use the Gauss Integration method to estimate the integral of fcn(x), between the limits of a and b.                                                                              fcn: the function we want to integrate a and b: the lower and upper limits of integration n: The number of integration points used. The only acceptable values are 2, 3 and 4. If a value other that 2, 3 or 4 is passed, use n = 4.return value: the estimate of the integral Write and call a main() function that uses your GaussIntegration function to estimate and print the integral of:

x - 3 * cos(x) , with a = 1, b = 3 and n = 4                                                                                                                                  x - 3 * cos(x) , with a = 1, b = 3 and n = 5                                                                                                                           cos(2x)*x³, with a = 2, b = 3 and n = 2