QUESTION 2 1 2 1 1 2 1 1- (-7 & 2) and B- ( ²5 ) . Find -1 5 = -3 15 6. 0 1 3 7 9 6 i) the elementary matrices E₁ and E2 that reduce A to B. ii) E₁-¹ and ₂-¹. a) Given A =

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