Write a Given Finite Geometric Series Using Sigma (Summation) Notation

This video explains how to write a given geometric series using sigma notation. The sum is then found.

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Ex 2: Evaluate a Double Integral Over a Rectangular Region to Find a Volume – f(x,y)=c

This video explains how to determine the value of a double integral that represents volume.  A geometric formula is used the the double integral is evaluated.