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Evaluate:(141)2 – (140)2 |
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Answer» Given (141)2 – (140)2 According to the property 8 i.e. for every natural number n, we have [(n+1)2-n2] = [(n+1) + n] Here n = 140 By applying the above property we get, (141)2 – (140)2 = (140+1) + 140 = 141 + 140 = 281 |
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