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प्रश्न
Choose the correct alternative:
If A = `[(1, -1),(2, -1)]`, B = `[("a", 1),("b", -1)]` and (A + B)2 = A2 + B2, then the values of a and b are
विकल्प
a = 4, b = 1
a = 1, b = 4
a = 0, b = 4
a = 2, b = 4
उत्तर
a = 1, b = 4
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