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प्रश्न
If A `= [(2,1),(-1,2)], "B" = [(1,-2),(2,1)], "C" = [(1,-3),(2,1)],` then ____________.
विकल्प
A + B = B + A and A + (B + C) = (A + B) + C
A + B = B + A and AC = BC
A + B = B + A and AB = BC
AC = BC and A = BC
MCQ
रिक्त स्थान भरें
उत्तर
If A `= [(2,1),(-1,2)], "B" = [(1,-2),(2,1)], "C" = [(1,-3),(2,1)],` then A + B = B + A and A + (B + C) = (A + B) + C.
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