Attention Math Majors!?

Question

Riemann Sums

Use a Riemann Sum with n = 3 and midpoints to approximate the area under the curve y= x^(4) - 2x - 1 on the interval [-1, 2].

I need the step by step please.

Thank you!

Answer 1

[-1,2]=3

3/3=1

mid points are: -1/2, 1/2, and 3/2

y=1/16+1-1=1/16 for the first x

y=1/16-1-1

y=81/16-3-1

now you know the width and height of three rectangles find the areas and add up. good luck with your homework!