Please answer this question to the best of your ability. You are welcome to re-watch parts of any of the videos to help you. Note: in these questions, the left hand side of the first interval is denoted by .

Which notation best represents the right Riemann sum for the function over the interval using subdivisions of equal length ?
None of the above
Suppose that . What is the value of over the interval using three subdivisions of equal length ?
15 18 19 21 24 28 None of the above
Which of the following is the correct expansion for over the interval using two subdivisions of length where , and so on?