- #1

Qube

Gold Member

- 460

- 1

## Homework Statement

Express the integral of (sinx + 1) dx over the interval [0,pi] with a Reimann Sum using 4 subintervals of equal width and letting x_i^* be the left endpoint of the subinterval [x_(i-1), x_i]

## Homework Equations

Δx = [b-a] / n

## The Attempt at a Solution

Δx = pi/4.

The Reimann sum is

(pi/4)Ʃ(1 + sin (pi/4)i) with i = 0 and the upper bound being N-1 or 3.

Is this correct?