4. Let (x, d) be a metric space and ACX be nonempty set. Define f:X → IR, fix)= inf dex,a). aE A show that: i. R is continuous i. x eA if nd only if faw=a

Advanced Engineering Mathematics
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ISBN:9780470458365
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Chapter2: Second-order Linear Odes
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Let (x, d) be a metric space und ACX
nonempty set. Define f:X → R,
fix)= inf dex,a).
be a
show that:
i. R is continuous
ii x eA if und only if fas= a
Transcribed Image Text:Let (x, d) be a metric space und ACX nonempty set. Define f:X → R, fix)= inf dex,a). be a show that: i. R is continuous ii x eA if und only if fas= a
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