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Find the value of $ (1.6)^3 - (0.9)^3 -(0.7)^3$. |
3.024 -3.024 -3.24 3.24 |
3.024 |
$ (1.6)^3 - (0.9)^3 -(0.7)^3$ If a + b + c = 0, then a3 + b3 + c3 = 3abc 1.6 - 0.9 - 0.7 = 0 (1.6)3 - (0.9)3 - (0.7)3 = (1.6)3 + (- 0.9)3 + (- 0.7)3 = 3 × 1.6 × (- 0.9) × (- 0.7) = 3.024 |
