In our previous example we have computed a right Riemann sum for {{MATH_255}}. Check whether your result was correct by plugging in {{MATH_256}} in the formula above. {{CMD_257}} Now, we can take the limit of Riemann sums as {{MATH_258}} to find the exact value of the area of the region under the curve {{MATH_259}} on the interval {{MATH_260}}. Namely, {{MATH_261}} and, therefore {{MATH_262}} {{CMD_263}}