Approximating a Definite Integral Using Rectangles
4 rectangles are used and left endpoints as well as midponits to approximate the area underneath 16-x^2 from x = 0 to x = 2.

The Trapezoid Rule for Approximating Integrals
This video shows the formula and give one simple example of using the Trapezoid Rule to approximate the value of a definite integral.

Simpsons Rule - Approximate Integration
This video gives the formula for Simpsons Rule, and uses it to approximate a definite integral.

Simpsons Rule - Error Bound
This video finds the number of intervals required when using Simpson's Rule to approximate a definite integral to a desired accuracy.

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