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OpenStudy (anonymous):
Find ||e-4f|| assuming that e and f are unit vectors such that ||e+f|| = sqrt(3)
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zepdrix (zepdrix):
Hmm have you made any progress with this yet? I'm not quite sure if my approach is correct, but I'll show you what I've got so far.
zepdrix (zepdrix):
|dw:1374262860150:dw|
zepdrix (zepdrix):
|dw:1374263070790:dw|I hope I drew that correctly.. It's been a while since I've worked with vectors :S
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