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प्रश्न
Use property to evaluate : 93 - 53 - 43
योग
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उत्तर
Property is if a + b + c = 0 then a3 + b3 + c3 = 3abc
a = 9, b = -5, c = -4
93 - 53 - 43 = 93 + (-5)3 + (-4)3 = 3(9)(-5)(-4) = 540
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