hm 2.26 If g(x) = EaxJ is a step function and Ji C [a, b] V i = 1, ...,n, then b n g(x) is Riemann integrable on [a, b] and S g(x)dx = Ea(B- a), а i=1 where a and Bare the end points of Ji

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A: we have to simplify

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Q: invertible

A:

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