Question

Find the scalar product of 2i^-2j^-3k^ and 4i^+3j^-k^​

Answer 1

Answer:

5

Explanation:

$(2\vec i-2\vec j-3\vec k) (4\vec i+3\vec j- \vec{k})\\\to 2\times 4 - 2\times 3 + 3 \times 1\\\to 8-6+3\\\to 5$