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Deepak patra Asked a Question
May 24, 2021 7:42 pmpts 30 pts
13. Let f: R R be defined by f{t) = t and let U be any non-empty open subset of R Then (A) fU) is open (B) f(U) is open (C) fU) is closed (D)fU) is closed
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  • Alka gupta thankyou
    ans B...
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