4- Answer the questions considering the linear equations below.x + y + z = 5x + 2y + 3z = 7x + 3y + 6z = 11c) Write the elimination matrices E21, E31, E32 and their inverses.d) Write down E and E-1 by using E21, E31, E32.| a) Write these equations in matrix form as Ax = b} b) Put these equations in upper triangular form by following| the elimination steps. (Write 112, 131, 132 explicitly in these steps)e) Obtain A by satisfying the factorization A = LU.

According to our company guidelines, as it is a multipart question, we only solve the first three…

4- Answer the questions considering the linear equations below. x + y + z = 5 x + 2y + 3z = 7 x + 3y + 6z = 11 c) Write the elimination matrices E21, E31, E32 and their inverses. | a) Write these equations in matrix form as Ax = b } b) Put these equations in upper triangular form by following | the elimination steps. (Write 42, l31, l32 explicitly in these steps) 15-11