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ln(40^39), ln(39^41) 39ln(40), 41ln(39) The second one is bigger, I think that is obvious. So 40^39 < 39^41 Thumbnail and video are different. ln(40^40), ln(39^41) 40ln(40), 41ln(39) ln(40), ln(39) + ln(39) ln(40), 2ln(39) The second one is still bigger. 40^40 < 39^41
