YOU MUST USE PYTHON AND EXAMPLE CODE

Give a 33 elementary matrix named that multiplies the second row by 1/2. Apply this to matrix and store the result as a new variable \# Put your answer here. E4=A4=E4A3 sym.Matrix(A4) - Give a 33 elementary matrix named that adds 3 times the first row to the third row. Apply this elementary matrix to the matrix A2 , and store the result as a new variable A3. \# Put your answer here. E3= A3=E3A2 sym.Matrix(A3)