Hi! I am Isaac and it is the first time for me to send a video idea to you! I got a set of problems that can help prove zeta(2)=pi^2/6 which is very interesting! Here is the problem set:
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I have watched your video for 2-3 years and your videos are very interesting and fun, especially Math for Fun! Even I made a account of Brilliant and made some questions and discussion because of you! I will be so glad if you make a video about this.
P.S. My English is pretty bad cuz I am come from HK. Sorry about that.