Without Actually Calculating The Cubes, Find The Value Of:1. (28)3 (-15)3 (-13)32. (1/2)3 (1/3)3 (5/6)3
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1. (28)3 + (-15)3 + (-13)3
28+(-15)+(-13) = 28-15-13 = 0
thus (28)3 + (-15)3 + (-13)3 = 3*28*(-15)*(-13) = 16380
28+(-15)+(-13) = 28-15-13 = 0
thus (28)3 + (-15)3 + (-13)3 = 3*28*(-15)*(-13) = 16380
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