9 Videos for "unit vectors"

Unit Vectors  Concept
Math › Precalculus › Vectors and Parametric Equations
How to express a vector algebraically in terms of the unit vectors i and j. 
Unit Vectors  Problem 1
Math › Precalculus › Vectors and Parametric Equations
How to convert a vector into component form when it is expressed in terms of the unit vectors i and j. 
Unit Vectors  Problem 3
Math › Precalculus › Vectors and Parametric Equations
How to find a unit vector in any direction given the direction's angle. 
Unit Vectors  Problem 2
Math › Precalculus › Vectors and Parametric Equations
How to find the unit vector that has the same direction as a given vector. 
The Cross Product of Vectors  Concept
Math › Precalculus › Systems of Linear Equations and Matrices
How to compute the cross product of two 3D vectors. 
The Cross Product of Vectors  Problem 2
Math › Precalculus › Systems of Linear Equations and Matrices
How to show that the cross product of vectors u and v is perpendicular to both u and v. 
The Cross Product of Vectors  Problem 3
Math › Precalculus › Systems of Linear Equations and Matrices
How to find the equation of a plane that contains three given points. 
The Cross Product of Vectors  Problem 1
Math › Precalculus › Systems of Linear Equations and Matrices
How to show that when you reverse the order of a cross product, you get the opposite result. 
Parametrizing a Circle  Concept
Math › Precalculus › Vectors and Parametric Equations
How to write the parametric equations of a circle centered at (0,0) with radius r, oriented counterclockwise.