simplify   4 videos

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  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
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  Computing Difference Quotients

  Precalculus Equations of Lines, Parabolas and Circles

  How to compute and simplify the difference quotient of a linear function.

  functions function notation slope secant line difference quotient
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  Computing Difference Quotients

  Precalculus Introduction to Functions

  How to compute and simplify the difference quotient of a linear function.

  functions function notation slope secant line difference quotient
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  Using Trigonometric Identities

  Precalculus Trigonometric Functions

  How to simplify a trigonometric expression by converting to sines and cosines and using algebra.

  reciprocal identities