Find AB for each of the following cases. (a) 4=(-2-3), B=(234)T (b) A=(2), B=(43)T 2. The...

 

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Find AB for each of the following cases. (a) 4=(-¹2-¹3), B=(234)T (b) A=(2), B=(43)T 2. The matrices A, B are (4 3 21 A= 5 6 3,B= 3 5 2 Calculate AB and BA. 3 -22 -7 11 -9/ 3 -2 18 - (²³²) 3. Find the values of x, y, z and a which satisfy the matrix equation [x+3 2y lz-1 4a- - 2y+3 = [3 2 11 4. If A- 0 1 -2, Find det A by expansion about (a) the first row (b) the first column L1 3 5. Find the inverse, if exists, of the matrix 0 -2-31 A= 1 3 Find AB for each of the following cases. (a) 4=(-¹2-¹3), B=(234)T (b) A=(2), B=(43)T 2. The matrices A, B are (4 3 21 A= 5 6 3,B= 3 5 2 Calculate AB and BA. 3 -22 -7 11 -9/ 3 -2 18 - (²³²) 3. Find the values of x, y, z and a which satisfy the matrix equation [x+3 2y lz-1 4a- - 2y+3 = [3 2 11 4. If A- 0 1 -2, Find det A by expansion about (a) the first row (b) the first column L1 3 5. Find the inverse, if exists, of the matrix 0 -2-31 A= 1 3