Why is 'x' the unknown? | Terry Moore
TED Talks Education - Podcast tekijän mukaan TED
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Why is 'x' the symbol for an unknown? In this short and funny talk, Terry Moore gives the surprising answer.
TED Talks Education - Podcast tekijän mukaan TED
Why is 'x' the symbol for an unknown? In this short and funny talk, Terry Moore gives the surprising answer.