with matlab

Question 1: 3.1 The function (x,)cos(x + 8)-cos(x) can be transformed into another form, f,(x,6) , using the trigonometric identity: (20)sin( ) cos( cos()--2 sin Thus, f and f, have the same values, in exact arithmetic, for any given argument values x and . Write a MATLAB script that will calculate g(x,d),(x,d)/+sin(x)and 82(x, ) (x,)/+sin(x) forx-3 and d'e 1.0e-11. Explain the difference in the results of the two calculations Question 2: 3.6 The roots of the quadratic equation x 2br+e0 with b c are given by