Two vectors are given in component form as and . What is their dot product ?
Answer and explanation
Correct answer: C. 0
- Step 1: Recall the formula for the algebraic dot product of two planar vectors: .
- Step 2: Substitute components: . (The vectors are orthogonal).
Answer
0.
Why not the others: '24' adds neglecting the negative sign; '7' adds the components ; '-1' subtracts incorrectly.
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