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Evaluate:(92)2 – (91)2 |
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Answer» Given (92)2 –(91)2 According to the property 8 i.e. for every natural number n, we have [(n+1)2-n2] = [(n+1) + n] Here n = 91 By applying the above property we get, (92)2 – (91)2 = (91+1) + 91 = 92 + 91 = 183 |
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