Invers dari matriks A = [[3, 1], [5, 2]] adalah...

Answer and explanation

Correct answer: D. [[2, -1], [-5, 3]]

det(A) = 3(2) - 1(5) = 6 - 5 = 1. A⁻¹ = (1/det) × [[d, -b], [-c, a]] = [[2, -1], [-5, 3]].

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