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7 November, 16:10

Find a ⋅ b. a =, b =

+1
Answers (2)
  1. 7 November, 16:38
    0
    Answer = 41

    Explanation

    a · b is a scalar product.

    a = =

    x₁ = 7

    y₁ = 4

    b = =

    x₂ = 3

    y₂ = 5

    a · b = (x₁ * x₂) + (y₁ * y₂)

    = (7 * 3) + (4 * 5)

    = 21 + 20

    = 41

    a · b = 41
  2. 7 November, 18:37
    0
    A · b = 7·3 + 4·5 = 21 + 20 = 41
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