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Mathematics, 11.11.2020 02:20 Kassymatt

Find the smallest value of n that produces an x^-9 term in the expansion of x² (7x^-3 + 5x^5)^n where n€Z+

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Find the smallest value of n that produces an x^-9 term in the expansion of x² (7x^-3 + 5x^5)^n wher...
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