What do I need to KNOW to begin precal?

• Jul 9th 2009, 10:00 AM
allyourbass2212
What do I need to KNOW to begin precal?
As the topic states what do I specifically need to know before beginning precal?

e.g factoring quadratic polynomials

The reason I asked is that I am nearing completing for a book on algebra I and about half of II, a self teaching guide, and I would like to sign up for precal if this is sufficient enough background.

Thank you
• Jul 9th 2009, 10:32 AM
Kasper
A basic skim of topics to have a firm grasp on before you start pre-calc would be;

Geometry;
-Points and Lines
-Similar Triangles
-Pythagoras' Theorem
-Perimeters, areas, and volumes of geometric figures.

Algebra;
-The Real Line
-Elementary arithmetic
-Arithmetic between algebraic expresssions.
-Factoring
-Distributive law, factoring polynomials.
-Completing the square
-Exponents

Trigonometry;
-Trigonometric functions and inverse trig functions
-Graphs of trig functions
-Common values between trig functions
-Trig Identities
-Sine and Cosine laws.

Also, I would strongly recommend you are very very comfortable with function notation.

For a more comprehensive list, and even review, I'd recommend checking out http://media.wiley.com/product_data/...0764539841.pdf, if you can work through that, I'd say you are ready.
• Jul 9th 2009, 10:42 AM
allyourbass2212
Thank you sir!
• Jul 9th 2009, 10:55 AM
allyourbass2212
Just a followup I was able to work my way through the vast majority of the examples given flawlessly. I would like to note that I did not see much about geometry within the review, perhaps I missed it.
• Jul 9th 2009, 11:13 AM
Kasper
I added that in because you will use those concepts plenty for related rates and optimization problems.
• Jul 9th 2009, 02:06 PM
allyourbass2212
Quote:

Originally Posted by Kasper
I added that in because you will use those concepts plenty for related rates and optimization problems.

Perhaps it would be wise to purchase a self teaching guide for geometry if I have not used the subject in awhile.
• Jul 9th 2009, 03:11 PM
yeongil
Yes, a self-teaching guide in geometry would be a good idea. For many high school students today in the US the math sequence is alg 1 - geometry - alg 2 - precalc.

Quote:

Originally Posted by Kasper
A basic skim of topics to have a firm grasp on before you start pre-calc would be;

Geometry;
-Points and Lines
-Similar Triangles
-Pythagoras' Theorem
-Perimeters, areas, and volumes of geometric figures.

Algebra;
-The Real Line
-Elementary arithmetic
-Arithmetic between algebraic expresssions.
-Factoring
-Distributive law, factoring polynomials.
-Completing the square
-Exponents

Trigonometry;
-Trigonometric functions and inverse trig functions
-Graphs of trig functions
-Common values between trig functions
-Trig Identities
-Sine and Cosine laws.

Knowledge of trig beforehand isn't required. Many precalc courses include trig. To me precalc = college algebra + trigonometry + analytic geometry + (a bit of) discrete math.

01
• Jul 9th 2009, 04:48 PM
Kasper
My pre-calc included a small few-page review of grade 12 trig, but nothing else before assuming you know it backwards and forwards, differences in the curriculems I suppose.

At the very least, if you know that going into it, you'll be golden.