Question: solve this question 6. (T, 40) (hint: E-6) Let f(x) be the function f(@) = 1 if a is irrational 0 if r is rational.

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solve this question 6. (T, 40) (hint: E-6) Let f(x) be the

6. (T, 40) (hint: E-6) Let f(x) be the function f(@) = 1 if a is irrational 0 if r is rational. Prove that lim f(x) # 1. r-+2

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