Definite integral $\int_0^92\sqrt x\,\mathrm dx$ I am having trouble trying to solve this definite integral: $$\int_0^92\sqrt x\,\mathrm dx.$$
I already made this:

But I don't know how to proceed with this Riemann Summation.
(I cant solve it using FTC, only Riemann Summation).

Nothing says your partition has to be evenly spaced.  Set your samples at $x_i^* = (3i/n)^2$.  Your integrand is $f(x) = 2\sqrt{x}$, so $f(x_i^*) = 6i/n$, which you should find easier to sum.
