= A= putting A = (-1). 5 -2 -5 1 a= 3, 5 -2 -5 1 a b C d 3 5 7 d b= 5, C= 7, d=l -2 7 1 2 12 -3 d 1 -2 -2 -7 7 12 - -3 1 -2 9 5 -2 -5 1 0 0 1 Am d 3 3 2 7 1 -2 2 -19 6 29 0 19 29 We get, 1₂²=2-9 33²=33-4 cu = 44-44 ( Expanding with respect to fourt row)

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