Mathematics · Metric Spaces
Which of the following correctly represents the triangle inequality in a metric space (E, d) for all x, y, z ∈ E?
- 1None of these
- 2d(x, y) ≤ d(x, z) + d(z, y)✓
- 3d(x, y) ≥ d(x, z) + d(z, y)
- 4d(x, y) ≠ d(x, z) + d(z, y)
Correct answer
d(x, y) ≤ d(x, z) + d(z, y)
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