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2X2 మాత్రిక యొక్క నిర్ధారకాన్ని కనుగొనుట
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Title - Finding the determinant of a 2x2 matrix
URL -https://www.khanacademy.org/math/algebra/algebra-matrices/inverting_matrices/v/finding-the-determinant-of-a-2x2-matrix