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If x²+1/x²=34 find x³+1/x³-9 |
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Answer» X^² + 1/x^² = 34 x + 1/x =√ (34 + 2) = 6 x^³ + 1/x^³ = (x + 1/x)^3 - 3 x/x (x + 1/x) = 6^3 - 3 * 6 = 198 |
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