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INVERSE of a 3x3 Matrix SIMPLE METHOD
>> YOUR LINK HERE: ___ http://youtube.com/watch?v=EOVg7BGR7fU
#matrix #inverse #3x3 • Subscribe to the channel here: / @iqinitiative • Determinant of a 3x3 Matrix: • Determinant of a 3x3 Matrix • Other matrix videos: • Matrices • Facebook: https://www.facebook.com/profile.php?... • Tweeter: https://twitter.com/IQ_Initiative?t=b... • INVERSE OF A MATRIX • Definition • Let A be any square matrix. If there exists another square matrix B Such that AB = BA = I (I is a unit matrix) then B is called the inverse of the matrix A and is denoted by A-1. • The cofactor method is used to find the inverse of a matrix. Using matrices, the solutions of simultaneous equations are found. • Working Rule to find the inverse of the matrix • Step 1: Find the determinant of the matrix. • Step 2: If the value of the determinant is non zero proceed to find the inverse of the matrix. • Step 3: Find the cofactor of each element and form the cofactor matrix. • Step 4: The transpose of the cofactor matrix is the adjoint matrix. • Step 5: Apply the formula for the inverse
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