in math-lab please thanks

Programming: 1. Write a function that takes as input - dimension n n x n orthogonal matrix Q; -n n upper triangular matrix R; - n x 1 vector b and outputs the solution to Azb using the QR factorization A-QR. Do not use Matlab's built-in transpose operator. a) Write out or print out your function and turn it in. (b) Run your function for the case: 1 r-2-5 V2L0 1' V2L-1 1 13 Write out or print out your result