How can i make a system or code on my computer for this question?

3. [1] A 33 matrix M is given as a list with three elements, each of which is one row in M. In other words, M=[[1,2,3],[4,5,6],[7,8,9]] represents the matrix 147258369 Given a 33 matrix M, return True if M is symmetric, and False if it is not