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प्रश्न
If A + B = `[(1, 0),(1, 1)]` and A – 2B = `[(-1, 1),(0, -1)]`, then A = ______.
रिकाम्या जागा भरा
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उत्तर
If A + B = `[(1, 0),(1, 1)]` and A – 2B = `[(-1, 1),(0, -1)]`, then A = `underlinebb([(1/3, 1/3),(2/3, 1/3)])`.
Explanation:
2(A + B) + (A – 2B) = `[(2, 0),(2, 2)] + [(-1, 1),(0, -1)]`
3A = `[(1, 1),(2, 1)]`
A = `[(1/3, 1/3),(2/3, 1/3)]`
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