## anonymous one year ago Write the Riemann sum to find the area under the graph of the function f(x) = x^2 from x = 1 to x = 5.

1. Loser66

Let $$P :=\{1=x_0, x_2,......,x_n=5\}$$ be a partition of [1,5] then Riemann sum of f(x) is $\sum_{i=1}^n f(x^*_i )(x_{i+1}-x_i)$

2. anonymous

So would it be the first or second one? $\sum_{i=1}^{n}(1+(5i)/n)^2(4/n)$ $\sum_{i=1}^{n}(4i/n)^2(4/n)$

3. anonymous

first right?

4. anonymous

@Loser66

5. Loser66

I think so