Let X = c, the space of all conver gent sequences, andd de fined as d (r, y) = >lan - Ynl, then d is O a metric O semi metric but not metric O not well defined

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Question 20
Let X e, the space of all convergent sequences, and ddefined as
d(r. y) > e,- y.l. then dis
O a metric,
o semi metric but not metric
PO not well defined
Transcribed Image Text:Question 20 Let X e, the space of all convergent sequences, and ddefined as d(r. y) > e,- y.l. then dis O a metric, o semi metric but not metric PO not well defined
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