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∏n=2∞n3−1n3+1\large \displaystyle \prod_{n=2}^{\infty} \dfrac{n^3-1}{n^3+1}n=2∏∞n3+1n3−1 If the value of above product is in the form ab\dfrac{a}{b}ba, where aaa and bbb are coprime positive integers, find a+ba+ba+b.
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