2D Determinant and Inverse Matrix

2D Determinant and Inverse Matrix

Created by Mr.Lafferty@mathsrevision.com

2D Determinant and Inverse Matrix

Calculate the Determinant and Inverse matrix.

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B1 = Random(-9, 9)
A1 = Random(-9, 9)
B2 = Random(-9, 9)
A2 = Random(-9, 9)
M_1: {{A1, B1}, {A2, B2}}
a = Determinant(M_1)
M_2 = Invert(M_1)
A4: B2
B5: A1
B4: (-B1)
A5: (-A2)
M_3: {{A4, B4}, {A5, B5}}
C1: A4 / a
C2: B4 / a
C3: A5 / a
C4: B5 / a
text2 = FractionText(C4)
text3 = FractionText(C3)
text4 = FractionText(C2)
text5 = FractionText(C1)
text7: "M_1=" + (LaTeX[M_1]) + ""
text9: "det=" + (LaTeX[a]) + ""
text1: "M^-^1=\left(\begin{array}{rr}" + (LaTeX[text5]) + "&" + (LaTeX[text4]) + "\\" + (LaTeX[text3]) + "&" + (LaTeX[text2]) + "\\\end{array}\right)"
j: false