Question

is A[3 1 -1 2] find A2-5A+7I where I is the unit matrix of order 2×2
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Answer 1

Answer:

2z -1=14-z2z -1=14-z5) 7y / 5 = y - 48x +3 =27 +2x2z -1=14-z5) 7y / 5 = y - 48x +3 =27 +2x2z -1=14-z5) 7y / 5 = y - 4

Step-by-step explanation:

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