![[ A,<br>А, В, С, D]<br>В, с, D]<br>E 3D [0, в, С, D]<br>0, С,<br>0, 0, D]<br>[о, о, с, D]<br>[ 0,<br>[о, о, о,<br>[ 0,<br>[ 1/А, -1/А,<br>0,<br>0]<br>[<br>0,<br>1/В, -1/В,<br>0]<br>inv (E)<br>1/с, -1/C]<br>1/D]<br>[<br>[<br>](https://s3.us-east-1.amazonaws.com/storage.unifolks.com/qimg-008/008_arwxxz0-nxzyqbww.png)
Extracted text: [ A, А, В, С, D] В, с, D] E 3D [0, в, С, D] 0, С, 0, 0, D] [о, о, с, D] [ 0, [о, о, о, [ 0, [ 1/А, -1/А, 0, 0] [ 0, 1/В, -1/В, 0] inv (E) 1/с, -1/C] 1/D] [ [
Extracted text: B) USE THE SAME MATRIX "E" from above. Verify E x inv(E) is a 4 x 4 Identity Matrix. Fill Up the Empty part by using "Partitioned Matrix" - Divide matrices in submatrices that have more than one entry! I = 1