McqMate
| Q. |
Which of the following is NOT correct (A, B and C are matrices) |
| A. | A∙B = B∙A |
| B. | A∙B∙C = (A∙B) ∙C = A∙ (B∙C) |
| C. | C(A+B) = C∙A + C∙B |
| D. | 1 A = A 1 |
| Answer» A. A∙B = B∙A | |
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CAD-CAM and Automation