Answer:
2
Explanation:
Given
< x₁, y₁ > and < x₂, y₂ > , then
the dot product is calculated as
x₁ x₂ + y₁ y₂
Given u = < 7, 4 > and v = < 2, - 3 > , then
u • v
= (7 × 2 ) + (4 × - 3 )
= 14 + (- 12)
= 14 - 12
= 2
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