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Find a function f from R to R such that f is continuous at only one point?
11 years ago

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Answered by koram
f is a function from R to R such that f(a) is rational when a is irrational and f(a) is irrational when a is rational . prove that f cannot be continuous
11 years ago
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Find a function f from R to R such that f is continuous at only one point?

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