Question

A. Let (X,d) be a metric space. Define a diametr of a ubset A of X and then the diametr of an open ball with center x_0 and rarios r>0. B. Use (A) to show that every covergence sequnce in (X,d) is bounded.

Analytic geometry
ANSWERED
asked 2020-11-09
A. Let (X,d) be a metric space. Define a diametr of a ubset A of X and then the diametr of an open ball with center \(\displaystyle{x}_{{0}}\) and rarios r>0.
B. Use (A) to show that every covergence sequnce in (X,d) is bounded.

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2020-11-10
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