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Slav-nsk [51]
3 years ago
7

Need help Given u = ⟨root3, -1⟩ and v = ⟨3, –4⟩, what is u · v?

Mathematics
2 answers:
Dominik [7]3 years ago
5 0

Answer:

D

Step-by-step explanation:

Kryger [21]3 years ago
3 0

Answer:

3\sqrt{3} + 4

Step-by-step explanation:

If u = < x₁, y₁ >  and v = <x₂ , y₂ > , then

u • v = x₁x₂ + y₁y₂

Given

u = < \sqrt{3}, - 1 > and v = < 3, - 4 >, then

u • v = 3\sqrt{3} + (- 1)(- 4) = 3\sqrt{3} + 4

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