(076)15岁郭承光用英文开讲《定积分的特殊方法及其应用》

TECHNIQUES AND APPLICATION DEFINITE INTEGRAL BY GUO CHENG GUANG (076)开讲者：郭承光（15岁）
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Lessons In Mathematics and Science (Physics, Chemistry and Biology) From Primary to University Presented By Guo Cheng Guang and Guo Chengxi In English. Your comment or suggestion is very much appreciated.
https://www.youtube.com/channel/UC2dG5T9SJkUFTy-h0KbVbkw
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https://www.youtube.com/channel/UC2dG5T9SJkUFTy-h0KbVbkw