document.write( "Question 179946: u=(3,2+i,-i),v=(0,3-i,2),w=(3-i,-2,1+i)
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Algebra.Com's Answer #134970 by Fombitz(32388) $\"\"$ $\"About$

You can put this solution on YOUR website!
I think you're looking for the dot product (inner product) of u and v.
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\n" ); document.write( "I've changed to parentheses.
\n" ); document.write( "(u,v)= $\"u%5B1%5D%2Av%5B1%5D%2Bu%5B2%5D%2Av%5B2%5D%2Bu%5B3%5D%2Av%5B3%5D\"$
\n" ); document.write( "(u,v)= $\"3%2A0%2B%282%2Bi%29%283-i%29%2B%28-i%29%282%29\"$
\n" ); document.write( "(u,v)= $\"6-2i%2B3i-i%5E2-2i\"$
\n" ); document.write( "(u,v)= $\"6%2B%28-2i%2B3i-2i%29-i%5E2\"$
\n" ); document.write( "Remember that $\"i%5E2=-1\"$
\n" ); document.write( "(u,v)= $\"6%2B%28-i%29-%28-1%29\"$
\n" ); document.write( "(u,v)= $\"7-i\"$ \r
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