# calculus

Use the mid-point rule with n = 4 to approximate the area of the region bounded by y = x^3 and y = x.?

I know how to use the midpoint rule to get the area under a curve but I'm confused on how to get the area between the two curves. Do I subtract them somehow? How do I set it up?

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1. yes. the height of each rectangle is the distance between the curves: x-x^3

or, you can consider finding the area below y=x and then subtracting from that the area below y=x^3

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