Reminders

Hey so if there's anyone out there like me who needs to be reminded of previous math concepts this page can be links to websites that focus on different concepts... kind of like a refresher page :)

[] Videos: [] (same as Alissa's post:))
 * Overall helpful websites**(covers many topics):

[]
 * Definitions:**

[] [] Identities: []
 * Trigonometry:**

[]
 * Logarithium Laws:**

Trig. Derivatives: []
 * Derivatives:**

Exponential: [] Video - []#

[] http://www.algebralab.org/lessons/lesson.aspx?file=Trigonometry_TrigSpecialTriangles.xml
 * Fractals**(we havent done them, but you can play with the shape of them!):
 * Special Triangles:**

cos(60º) = = sin(30º) These results follow from using the 60º angle in the triangle along with the definitions of sine and cosine. ||
 * **sin** || **cos** || **tan** ||
 * 30º || [[image:http://www.algebralab.org/img/05b1de54-adea-4f03-985b-7d5bb7010b14.gif width="16" height="41"]] || [[image:http://www.algebralab.org/img/16ae2379-91a0-460f-a0fb-bc967928dc9c.gif width="27" height="45"]] || [[image:http://www.algebralab.org/img/c2ab357b-d16b-41d9-bb0e-1785dfafda2d.gif width="167" height="72"]] ||
 * 45º || [[image:http://www.algebralab.org/img/21c2bf06-9580-4267-8e4d-87d2a6acb211.gif width="28" height="45"]] || [[image:http://www.algebralab.org/img/5649b91d-b3b1-4a6e-bd3f-09235b0787f0.gif width="28" height="45"]] || [[image:http://www.algebralab.org/img/46eb9143-f620-41fd-a3f3-d39539211a33.gif width="203" height="69"]] ||
 * 60º || [[image:http://www.algebralab.org/img/b7237e55-c43f-4339-ba63-108960c2a5c2.gif width="27" height="45"]] || [[image:http://www.algebralab.org/img/944c0c9b-fea7-49af-a691-33df1d4721d8.gif width="16" height="41"]] || [[image:http://www.algebralab.org/img/ac691585-282d-4a76-9932-27ec69fda997.gif width="139" height="64"]] ||
 * We note also that sin(60º) = [[image:http://www.algebralab.org/img/1e95fd65-b7d0-4711-9875-bc0c2282827d.gif width="27" height="45"]]= cos(30º)