Find the two possible values of A, A1 and A2 satisfying thefollowing determinantal equation: a- b...

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Find the two possible values of A, A1 and A2 satisfying thefollowing determinantal equation: a- b D = = 0 C d-> for a = 4.1, b = 5.4, c = 4.2 and d = -3.3 and then give, as your answer, the value of 1 + 2 to one decimal place. Find the two possible values of A, A1 and A2 satisfying thefollowing determinantal equation: a- b D = = 0 C d-> for a = 4.1, b = 5.4, c = 4.2 and d = -3.3 and then give, as your answer, the value of 1 + 2 to one decimal place.