order of operations 7 videos
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Set Operation: Union
Precalculus Linear Equations and Inequalities
How to define union.
Venn diagram union set operation or -
Set Operation: Intersection
Precalculus Linear Equations and Inequalities
How to solve define intersection.
Venn diagram union set operation and -
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 -
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 -
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 -
The Identity Matrix
Precalculus Systems of Linear Equations and Matrices
How to determine the identity matrix of order n.
matrices square matrices the identity matrix matrix 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
