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January 11, 2020 8:06 pm 15 pts
A function f is defined on interval (0, 1) as follows when x is irrational f(x)=1 when x is rational no.and lcm(p, q) =1, then which one of the following is true? (A) f is continuous at each irrational point and discontinuous at each rational point. (B) f is continuous at each rational point and discontinuous at each irrational point. (C) f is discontinuous at each rational and irrational points. (D) f is continuous at each rational and irrational points
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Dear Isha,

Greetings!!

Refer the attached image for solution.