Riemann And Lebesgue Integral

In this video we have discussed about the following topics :

Riemann and Lebesgue integrals, Characteristic Function
Simple function
Step function
The simple approximation Lemma and proof
The Riemann integral
Definition of Riemann Integral based on step function
Lebesgue integral of a bounded measureable function over a set of finite measure
Shortcoming of Riemann Integral and flexibility of Lebesgue Integral

[mathzone]

Hello mam
Please halp me mam on this problam
Q let f:[0 1] →R be given by f(x)=0 if x is rational and if x is irrational then f(x)=9^n
n is a number of zeroes immadiatlay after the decimal point in the decimal representation of x then the lebesgue integral
0 to 1
∫f(x) dx
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