22 Videos for "3d"

Vector Operations in 3D  Problem 1
Math › Precalculus › Vectors and Parametric Equations
How to find the angle between two vectors in 3D, and how to tell whether two vectors are parallel or perpendicular. 
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 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. 
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. 
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. 
Introduction to the 3D Coordinate System  Problem 1
Math › Precalculus › Vectors and Parametric Equations
How to find the coordinates of the vertices of a rectangular box. 
The Midpoint and Distance Formulas in 3D  Problem 1
Math › Precalculus › Vectors and Parametric Equations
How to find the length and midpoint of a segment in three dimensions. 
The Midpoint and Distance Formulas in 3D  Problem 2
Math › Precalculus › Vectors and Parametric Equations
How to find the equation of a sphere with center (a,b,c) and radius r. 
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. 
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. 
Vector Operations in 3D  Problem 2
Math › Precalculus › Vectors and Parametric Equations
How to find the angle between two vectors in three dimensions. 
The Midpoint and Distance Formulas in 3D  Problem 4
Math › Precalculus › Vectors and Parametric Equations
How to find the center and radius of a sphere when its equation is not in centerradius form by completing the square. 
Introduction to the 3D Coordinate System  Problem 2
Math › Precalculus › Vectors and Parametric Equations
How to find the equation of a sphere with radius r when it is centered at the origin. 
Vector Operations in 3D  Concept
Math › Precalculus › Vectors and Parametric Equations
How to perform vector operations like addition, scalar multiplication, the dot product, and finding the magnitude, in three dimensions. 
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. 
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. 
Longitudinal Waves
Science › Physics › Vibration and Waves
Understanding longitudinal waves. 
Linear Motion
Science › Physics › Linear and Projectile Motion
How linear motion works. 
Surface Area of Prisms  Problem 2
Math › Geometry › Area
How to calculate the surface area of a triangular prism. 
Surface Area of Prisms  Problem 1
Math › Geometry › Area
How to calculate the surface area of a rectangular prism.