Use the rref, pinv, and the left division methods to solve the following set.(Answer: Ther...

Use the rref, pinv, and the left division methods to solve the following set.

(Answer: There are an infinite number of solutions. The result obtained with the rref function is x1 = 0.2727x3 + 5.2727, x2 = −1.3636x3 − 2.2626, x3 arbitrary. The solution obtained with left division is x1 = 4.8000, x2 = 0, x3 = −1.7333. The one obtained with the pseudoinverse method is x1 = 4.8394, x2 = −0.1972, x3 = −1.5887.)