These notes cover approximately what you'll need to review going into Calculus, if you're in a course that uses this textbook. Some of this may be covered in Chapter 1.
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Precalculus
Difference of squares
Sum of cubes
Difference of cubes
change of base formulas
Factorial
Factorial Can be defined as multiplying the first n natural numbers, or
recursively as follows:
Sigma Notation(Summation)
Adding up the first 10 natural numbers
can be rewritten as
the index variable, here, can be part of an expression, or it can be used as
just an index, as with the following
In this example, has no real meaning, other than to help stand for
etc.
