MATRIX determinant in CASIO fx-991CW✅Tutorial

🆗 The instructions on how to calculate the determinant of a matrix [3x3] on the CASIO fx-991CW scientific calculator, as described in the video, can also be applied to: CASIO fx-570CW, CASIO fx-JP700, 900CW & CASIO fx-880BTG; CASIO fx-8200AU; CASIO fx-550AZ.
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