Khan Academy: Surface Integrals: Surface Integral Part 2 Evaluating Integral

Video finishing the derivation of Green's theorem by showing that the closed line integral in a vector field with vectors only in the y-direction is equal to the double integral over the region contained within the closed curve of the...

Video continues and completes the solution to a navigation problem that uses trigonometry to find the missing length of a triangle. [2:51]

This video demonstrates how to evaluate an expression with two variables using substitution. [1:46]

Video example of finding the inverse of a 3 by 3 matrix. Includes using expansion by minors to determine the determinant and finding the matrix of cofactors and adjugate or adjoint matrix. This video also appears in the strand Algebra:...

Part 2 of a 4-part video series solving for the surface integral of a surface made of three separate parts.

This is part 2 of a 3-part video series showing how to calculate the surface integral of a torus.

This is part 2 of a 3-part video series showing how to calculate the surface integral of the unit sphere.

This is part 4 of a 4-part video series solving for the surface integral of a surface made of three separate parts.

Part 3 of a 4-part video series solving for the surface integral of a surface made of three separate parts.

This is part 3 of a 3-part video series showing how to calculate the surface integral of a torus.