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Terry Moore: Tại sao "x" có nghĩa là ẩn số?
4,400,495 plays
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Terry Moore
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TED2012
• February 2012
Read transcript
Tại sao "x" tượng trưng cho ẩn số?Trong cuộc nói chuyện ngắn gọn vui vẻ này, Terry Moore cho chúng ta câu trả lời thật ngạc nhiên.
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