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If A and B are square matrices of ord...

If `A` and `B` are square matrices of order 2, then `det(A+B)=0` is possible only when `det(A)=0` or `det(B)=0` (b) `det(A)+det(B)=0` (c) `det(A)=0` and `det(B)=0` (d) `A+B=O`

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