Our next step will be to eliminate all nonzero entries from the second column of A) L1 A by left multiplication of L2. This should yield: 411 412 13 14 0 u22 u23 24 00 u33 u34 (1) yielding A DO THIS: Create a 4 4 unit lower triangular matrix, above. Display the matrix L2 using SymPy. 2 that eliminates all of the subdiagonal entries of the second column of as In [ ]: # Type your answer here 2 -np.matrix ( [ [ 1 , , , ],[,1,,],[',1,],[,,,1]]) #for your convenience DO THIS: Left-multiply AD) by L2 to confirm that all of the subdiagonal entries of column 2 of A) are zero. Display the result via SymPy. Note: Your y will be whole, or Integer (Z), numbers. In [ ]:,# Type your answer here Our next step will be to eliminate all nonzero entries from the second column of A) L1 A by left multiplication of L2. This should yield: 411 412 13 14 0 u22 u23 24 00 u33 u34 (1) yielding A DO THIS: Create a 4 4 unit lower triangular matrix, above. Display the matrix L2 using SymPy. 2 that eliminates all of the subdiagonal entries of the second column of as In [ ]: # Type your answer here 2 -np.matrix ( [ [ 1 , , , ],[,1,,],[',1,],[,,,1]]) #for your convenience DO THIS: Left-multiply AD) by L2 to confirm that all of the subdiagonal entries of column 2 of A) are zero. Display the result via SymPy. Note: Your y will be whole, or Integer (Z), numbers. In [ ]:,# Type your answer here