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S Jun 12, 2019 at 7:44 history suggested Davood Khajehpour CC BY-SA 4.0
I've just improved the math-type of the answer, and I did not change the answer even a little bit. [MathJax]
Jun 12, 2019 at 6:23 review Suggested edits
S Jun 12, 2019 at 7:44
Jan 12, 2018 at 7:09 vote accept MHMertens
Jan 12, 2018 at 6:34 history answered paul Monsky CC BY-SA 3.0