Help please I need assistance. I need to use python to solve this and I'm lost.

Sample Matrix: A=[[1,0],[0,1]] B=[[1,2],[3,4]] 1. Define the matrix A and B in Python. 2. Add 3 to every element in A. 3. Compute the dot product of A and B. 4. Create a new matrix C of same dimension of A with value 1 . 5. Create a new matrix D of same dimension of B with value 0 . 6. Add matrix A and C. 7. Subtract matrix D from B