Question: 3. Let a, b E R, a R be defined by -2 , if r E Q f(x) = 0 ,if x q Q Use

3. Let a, b E R, a R be defined by -2 , if r E Q f(x) = 0 ,if x q Q Use the Darboux definition of the definite integral to prove that f(x)h(x) is not integrable on [a, b]

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