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Vectors – Calculation of scalar multiplication between vectors in vector presentation – Exercise 3584

Exercise

Given

\vec{a}=3\vec{i}+\vec{j}-2\vec{k}

\vec{b}=\vec{i}-4\vec{j}-5\vec{k}

Calculate the following

\vec{a}\cdot\vec{b}

Final Answer

\vec{a}\cdot\vec{b}=9

Solution

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