if U=8i+4j-12j and V=i+2j-k, write U as the sum of a vecter parallel to V and a vector perpendicular to V
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Originally Posted by rabih2011 if U=8i+4j-12j and V=i+2j-k, write U as the sum of a vecter parallel to V and a vector perpendicular to V $\displaystyle U = V_{||} + V_ \bot $ where $\displaystyle V_{||} = \frac{{U \cdot V}}{{V \cdot V}}V$ and $\displaystyle V_ \bot = U - V_{||} $
thanks but how do i find V||?
Originally Posted by rabih2011 thanks but how do i find V||? I showed you $\displaystyle V_{||} = \frac{{U \cdot V}}{{V \cdot V}}V$ Now do it.
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