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OpenStudy (anonymous):
i just found this interesting video , why X is unknown ? https://www.youtube.com/watch?v=YX_OxBfsvbk
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ganeshie8 (ganeshie8):
finaly i knw now why x is the unknown xD
ganeshie8 (ganeshie8):
nice and informative :D ty for sharing !
OpenStudy (anonymous):
lolz , yeah me too first time to know haha
OpenStudy (anonymous):
np :)
OpenStudy (skullpatrol):
Thanks @BSwan :-)
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OpenStudy (anonymous):
glade u liked it :)
OpenStudy (anonymous):
glad*
OpenStudy (skullpatrol):
By the way, it was Rene Descartes who started using the final letters of the alphabet to represent unknowns :)
OpenStudy (anonymous):
i don't know that as well :) i need background in history of math
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