Question

solve using identity (1/2)^3+(1/3)^3-(5/6)^3

Answer 1

Hi friend
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Your answer
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$as \\ \\ ( \frac{1}{2} + \frac{1}{3} - \frac{5}{6} ) = 0 \\ \\ so \\ \\ ( \frac{1}{2} ) {}^{3} + ( \frac{1}{3} ) {}^{3} - ( \frac{5}{6} ) {}^{3} = 3 \times \frac{1}{2} \times \frac{1}{3} \times - \frac{5}{6} \\ \\ = - \frac{5}{12}$
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