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In this video we will see the notion of partial derivatives. We will see the definition mathematically as well as we will see their meaning geometrically.
Partial derivative with respect to x is the slope of the tangent line along x axis. Partial derivative with respect to y is the slope of the tangent line along y axis.
We will try to imagine this and we will try to see them using the software GeoGebra. In GeoGebra we will plot the surface, point, plane , tangent line.