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Finding determinant of a 2x2 matrix
Finding determinant of a 2x2 matrix
Last updated at Aug. 17, 2021 by Teachoo
Example 5 Find values of x for which 3 x x 1 = 3 2 4 1 Given 3 x x 1 = 3 2 4 1 Putting values 3 x2 = 5 x2 = 5 3 x2 = 8 x2 = 8 x = 8 = 2 2 2 = 2 2 Hence value of x is 2