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Solve: x5(3 – 6x-9). |
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Answer» Let y = x5 (3 – 6x-9) \(\frac{dy}{dx}\) = x5(+54x-10) + (3 – 6x-9)(5x4) = 54x-5 + 15x4 – 30x-5 = 24x-5 + 15x4 |
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