Question: -1 2 3 1 2 4 Question 17 (6 marks) Let A = Compute det A by using the appropriate properties of matrices. -1 -3

-1 2 3 1 2 4 Question 17 (6 marks) Let A = Compute det A by using the appropriate properties of matrices. -1 -3 9 0 1 1 2 -11 0 -C Question 18 (5+ 3) Let A = -1 3 1 0 2c -4 (i) Show that det A = 2(c + 2) (c - 3).(ii) Use part (i) above to solve the system T - TZ O -x+ 3y+z = 0 27y - 42 = 0 Do NOT use Gaussian elimination

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