Evaluating Line Integrals

We know that we can use integrals to find the area under a curve, or double integrals to find the volume under a surface. But now we are going to learn about line integrals, which allow us to find the area under a surface along a particular path within that surface. In doing this we will revisit parametric equations, so you know it'll be tons of fun!
Script by Howard Whittle
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