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Posted: **Tue Sep 07, 2021 7:01 am**

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> Question 20 Use the following set of equations to solve questions (20 to 24) Based on Inverse method 2x,-X2 = 4 3x + 2x2 = 2 (11) (2) The value of column 4 (CA) in the augmented matrix (A| ) after zeroing element (@21) is: O (1/2.3/27 O 11.-1/217 o 11.01T None

Question 21 The value of row 1 (R.) in the augmented matrix (Al 1) just after getting a unity diagonal is: 0 (1.-1/2, 1/2.0) 0 (1.0.2/7.1/7) O None 0 [1.0,-3/7.2/7)

Question 22 The value of the multiplier when zeroing element (221): 0 None 0 -1/2 1/2

D Question 23 The exact values of xq is: 0 None 5:07 10:7 6-8/7

Question 24 The Left to right diagonal elements in the inverse matrix of A is: O [2/7,-3/7] 0 None O [2/7,1/7] O [2/7.2/7]