107 Videos for "vector"

The Angle Between Vectors  Problem 3
Math › Precalculus › Vectors and Parametric Equations
How to compute one of the angles of a triangle when you are given the coordinates of its three vertices. 
Vector Quantities  Scalar Quantities
Science › Physics › Linear and Projectile Motion
Understanding the differences between vectors and scalar quantities. 
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  Concept
Math › Precalculus › Systems of Linear Equations and Matrices
How to compute the cross product of two 3D vectors. 
Lines in 3D  Concept
Math › Precalculus › Vectors and Parametric Equations
How to find the vector and parametric equations of a line when given two points on the line. 
Lines in 3D  Problem 3
Math › Precalculus › Vectors and Parametric Equations
How to find the point where a line passes through the xyplane given the vector equation of the line. 
Lines in 3D  Problem 1
Math › Precalculus › Vectors and Parametric Equations
How to find the vector equation, the parametric equations, and the symmetric equation of a line given two points on the line. 
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. 
The Midpoint and Distance Formulas in 3D  Concept
Math › Precalculus › Vectors and Parametric Equations
How to derive the formula for the midpoint of a segment in three dimensions. 
Components of a Force  Concept
Math › Precalculus › Vectors and Parametric Equations
How to define the components of a vector. 
Introduction to the 3D Coordinate System  Problem 3
Math › Precalculus › Vectors and Parametric Equations
How to find the components of a vector from point A to point B in threedimensions, and how to find its length. 
Introduction to the 3D Coordinate System  Concept
Math › Precalculus › Vectors and Parametric Equations
How to define the components and length of a position vector in three dimensions. 
Lines in 3D  Problem 2
Math › Precalculus › Vectors and Parametric Equations
How to find the vector equation of a line parallel to a given line L that passes through a given point not on L. 
Perpendicular, Parallel and Skew Lines in Space  Problem 1
Math › Precalculus › Vectors and Parametric Equations
How to find the equation of a line parallel to and perpendicular to a given line in space. 
Parametrizing a Line Segment  Problem 3
Math › Precalculus › Vectors and Parametric Equations
How to find a parametrization of segment AB that uses s, the distance from point A, as a parameter. 
The Midpoint and Distance Formulas in 3D  Problem 3
Math › Precalculus › Vectors and Parametric Equations
How to find the equation of the set of points equidistant from two given points. 
Components of a Force  Problem 1
Math › Precalculus › Vectors and Parametric Equations
How to find the horizontal and vertical components of a force. 
The Resultant of Two Forces  Concept
Math › Precalculus › Vectors and Parametric Equations
How to find the resultant of two forces when they are parallel, opposite, or perpendicular in direction. 
Components of a Force  Problem 3
Math › Precalculus › Vectors and Parametric Equations
How to use the component of an object's weight parallel to the surface of an inclined plane to find the weight of the object.