MCQ
If A and B are non-singular matrices, then
- A$( AB )^{-1}= A ^{-1} B^{-1}$
- B$AB = BA$
- C$( AB )^{\prime}= A ^{\prime} B ^{\prime}$
- ✓$( AB )^{-1}= B ^{-1} A^{-1}$
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| $X:$ | $-4$ | $-3$ | $-2$ | $-1$ | $0$ |
| $P(X):$ | $0.1$ | $0.2$ | $0.3$ | $0.2$ | $0.2$ |