How to get a subarray from a matrix. Write two function called top_right, top_left & bottom_right that takes two inputs: a matrix N and a scalar non-negative integer n, in that order, where each dimension of N is greater than or equal to n. The function returns the n-by-n square array at the top right corner of N.

1. function TR = top_right(N,n)

TR = N(end-n+1:end, 1:n);

2. function TL = top_left(N,n)

TL =

3. function BL = bottom_left(N,n)