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    NationalEasyGeometry10–12

    What is the scalar product of u⃗(2,−1,3)\vec{u}(2, -1, 3) and v⃗(1,4,2)\vec{v}(1, 4, 2)?

    Qual é o produto escalar de u⃗(2,−1,3)\vec{u}(2, -1, 3) e v⃗(1,4,2)\vec{v}(1, 4, 2)?

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    Solution

    Step 1 of 3

    1. 1.Multiply matching coordinates and add: 2×1+(−1)×4+3×22 \times 1 + (-1) \times 4 + 3 \times 2