three states of matter 8 videos
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Solving a Three-part Linear Inequality
Precalculus Linear Equations and Inequalities
How to solve a three part inequality.
interval notation inequality notation set builder notation three part inequality -
Combinations vs. Permutations
Precalculus Topics in Discrete Math
How to know when to use combinations or permutations.
combination permutation order matters order doesn't matter -
Vector Operations in 3D
Precalculus Vectors and Parametric Equations
How to perform vector operations like addition, scalar multiplication, the dot product, and finding the magnitude, in three dimensions.
vectors components vector addition scalar multiplication the dot product the scalar product magnitude length three dimensions -
The Midpoint and Distance Formulas in 3D
Precalculus Vectors and Parametric Equations
How to derive the formula for the midpoint of a segment in three dimensions.
position vectors the vector from point a to point b the midpoint formula vector addition scalar multiplication -
Combinations
Precalculus Topics in Discrete Math
How to find the number of combinations of a set.
chose choosing combination order doesn't matter pens -
Introduction to Planes
Precalculus Vectors and Parametric Equations
How to write an equation for the coordinate planes or any plane that is parallel to one.
coordinate axes coordinate planes octants the first octant planes three dimensions -
Introduction to the 3D Coordinate System
Precalculus Vectors and Parametric Equations
How to define the components and length of a position vector in three dimensions.
axes coordinates position vector components magnitude length distance origin -
Simplifying Determinants
Precalculus Systems of Linear Equations and Matrices
How to simplify determinants using three row (or column) operations.
determinant row operations column operations interchanging rows common factors adding a multiple of one row to another
