# The Angle Between Two Vectors in 2D: Acute Angle in Degrees and Radians

This video explains how to determine the angle between two vectors.

# The Angle Between Two Vectors in 2D: Obtuse Angle in Degrees and Radians

This video explains how to determine the angle between two vectors.

# Understanding Using Magnitude and Direction to Find Component Form

This video explains the formula to determine the component form of a vector using magnitude and directions using right triangle trigonometry.

# Robot Maze: Determine a Path Through a Maze Using Trigonometry and Geometry

This video explains how to use trigonometry and geometry to determine a path through a maze.

# Graph 3D Vectors Using 3D Calc Plotter

This video explains how to plot points in 3D using 3D Calc Plotter.

# Lagrange Multipiers: Find the Max and Min of a Function of Two Variables

This video explains how to use Lagrange Multipliers to maximum and minimum a function under a given constraint.  The results are shown in using level curves.

# Maximize a Function of Two Variable Under a Constraint Using Lagrange Multipliers

This video explains how to use Lagrange Multipliers to maximize a function under a given constraint.  The results are shown in 3D.

# Maximize a Cobb Douglas Production Function Using Lagrange Multipliers

This video explains how to use Lagrange Multipliers to maximize a function under a given constraint.  The level curves are shown.

# Minimize a Cost Function of Two Variable Under a Constraint Using Lagrange Multipliers

This video explains how to use Lagrange Multipliers to maximize a function under a given constraint.  The results are shown in using level curves.

# Ex: Find a Component of a Vector So Two Vectors are Orthogonal (Dot Product)

This video explains how to determine a unknown component of one vector so that two vectors are orthogonal or perpendicular.