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  • 06-04-2024
  • Mathematics
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Let be a 3 x3 matrix such that a₁₁ = a₃₃ = 2 and all the other aᵢⱼ. Let A⁻¹ = xA² + xY - zI, then find the value of where is a unit matrix of order 3.
a. 1
b. −9
c. 9
d. −1

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