use matlab to solve this problem. and answer all the question

Root-Finding Techniques 1. 45 Points. Consider the function (x)=1 - 10e coscas (3x) a. 10 Points. Plot the function from 0 to x= 10. How many roots are there in this range? Do you expect there to be roots beyond this range? b. 20 Points. Use five iterations of Newton-Raphson to find a root when Xo =2. That is, use 2 as your first guess for x. List, in the table below, the values of x and of /() for each of the five iterations. Iteration # x 0 2 1 2 3 4 5 c. 15 points. Which values of x would NOT be good choices to start Newton-Raphson technique? Why? Specifically, find at least two values of x in the range 0