# How to prove f(a) is integrable?

1. Nov 28, 2009

### ak123456

1. The problem statement, all variables and given/known data
f(a)=a^2 on the interval [0,1],how to prove it by the definition of integral ,and to find $$\int$$f(a) on the interval [0,1]

2. Relevant equations

3. The attempt at a solution
to prove by step functions ? set ai= (i/n)^(1/2) ??

2. Nov 28, 2009