ElcieS79750
ElcieS79750
03-11-2022
Mathematics
contestada
Find u · v.u = 6i − 4jv = i − j
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CroyT330748
CroyT330748
03-11-2022
[tex]\begin{gathered} u=6i-4j \\ v=i-j \\ u\cdot v=(6i-4j)\cdot(i-j) \\ u\cdot v=6(i\cdot i)+4(j\cdot j) \\ u\cdot v=6+4 \\ u\cdot v=10 \end{gathered}[/tex]
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