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| 1. |
Let alpha , beta and gamma be the roots of the equation x^3 - x - 1 = 0 . If P_k = (alpha)^k + (beta)^k + (gamma)^k , k gt= 1 , then which one of the following statements is not true? |
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Answer» `P_3 = P_1+P_2 + 1` |
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