Why is U raised to the -1/5 here in the second step? I understand that the 4/5 came from bringing u^1/5 up so that -1/5 + 1 = 4/5, but I do not see where the -1/5 comes from.
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Originally Posted by gammaman Why is U raised to the -1/5 here in the second step? I understand that the 4/5 came from bringing u^1/5 up so that -1/5 + 1 = 4/5, but I do not see where the -1/5 comes from. It comes from basic rules of exponents...
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