Matlab Help

I understand and already did 2a. Need help with the Matlab part (2b).

2. (15 points) The Maclaurin series expansion of sin(x) is given by 3 sin)39 estimate the true value of sin(T/3). Calculate the truncation error (true percent relative error). (error between current and previous estimate) falls below 0.01%. Document the final value, the (a) Use the first three terms in this equation to calculate the value of sin(T/3). Use your calculator to (b) Now write a MATLAB program that adds the terms until the approximate percent relative error percent relative error (approximate and true), and the number of iterations it took