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प्रश्न
Use property to evaluate:
133 + (–8)3 + (–5)3
मूल्यांकन
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उत्तर
Property is if a + b + c = 0 then a3 + b3 + c3 = 3abc
a = 13, b = –8 and c = –5
133 + (–8)3 + (–5)3
= 3(13) (–8) (–5)
= 39 × 40
= 1560
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