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Vectors

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Vectors

Concept

Find the dot product of two 2D vectors.

Walkthrough

Find the magnitude of vector (3, 4).

  1. 1.Recall the magnitude formula: |v| = √(x² + y²), where v = (x, y).
  2. 2.Identify the given vector: v = (3, 4), so x = 3 and y = 4.
  3. 3.Substitute into the formula: |v| = √(3² + 4²) = √(9 + 16).
  4. 4.Compute: |v| = √25 = 5.
  5. 5.So the magnitude of (3, 4) is 5.

Answer

5

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