Question

Find the interior and closure of each set . (a) [0,∞) (b) (1,1/2)∪(1/2,1/3)∪(1/3,1/4)∪(1/4,1/5)∪... (c){1 + 1/2...

Find the interior and closure of each set .

(a) [0,∞)

(b) (1,1/2)∪(1/2,1/3)∪(1/3,1/4)∪(1/4,1/5)∪...

(c){1 + 1/2 + 1/3 +···+ 1/n:n∈N}

(d){1 + 1/4 + 1/16 +···+ 1/4^n:n∈N}

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