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Messages - lyujiahe

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Term Test 1 / Re: Problem 2 (morning)
« on: October 28, 2019, 06:03:16 PM »
Do we need to consider (or simply analyze) the situation x = 0? Since all solutions here are based on x=0.

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Quiz-1 / Re: TUT0101 QUIZ1
« on: October 07, 2019, 10:59:55 AM »
Thank you so much!

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Quiz-1 / Re: TUT0101 QUIZ1
« on: October 03, 2019, 10:20:03 AM »
In the 10th line, by formula $\int \frac{1}{x} = ln|x|+C$, how can we identify $u+1 \geq 0, x \geq 0$?

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