Make a function defined as: def Secant(fcn, x0, x1, maxnew=14, xtol=1e-4):

Purpose: use the Secant Method to find the root of fcn(x), in the neighborhood of x0 and x1.

fcn: the function for which we want to find the root

x0 and x1: two x values in the neighborhood of the root

xtol: exit if the |xnewest - xprevious| < xtol

maxnew: exit if the number of iterations (new x values) equals this number

return value: the final estimate of the root (most recent new x value)

Write and call a main() function that uses your Secant function to estimate and print the solution of:

x - 3 * cos(x) = 0 , with x0=1, x1= 2, maxnew = 4 and xtol = 1e-4

cos(2x)*x³ = 0 , with x0=1, x1= 2, maxnew = 15 and xtol = 1e-8

cos(2x)*x³ = 0, with x0=1, x1= 2, maxnew =23 and xtol = 1e-8