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Mathematics 9 Online
OpenStudy (anonymous):

prove these formulas please: http://assets.openstudy.com/updates/attachments/522d79b5e4b0fbf34d6355b1-wolfe8-1378719550881-capture.png http://assets.openstudy.com/updates/attachments/522d79b5e4b0fbf34d6355b1-wolfe8-1378719688306-capture.png (@wolfe8 thanks)

OpenStudy (wolfe8):

Proving is my weakness...but if you're wondering about the properties, I got them here: http://www.math.ubc.ca/~feldman/m226/vectorppties.pdf

OpenStudy (anonymous):

Thank you I was great,but I need the proof of these formulas...

OpenStudy (wolfe8):

I'm guessing you'll have to show with examples?

OpenStudy (anonymous):

no,I think I don't need examples...I think these formulas can be proved without any examples.

OpenStudy (anonymous):

Thank you @wolfe8 fot that (PDF) I will prove this myself...I think I can :)

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