Trigonometric Identities

30 Nov 2006 @15:46

Wikipedia has a list of trig identities.

I’m not quite sure what’s worse, the fact that Wikipedia has them or the fact that I need to use them.

Calc III exam at 7:30 6:30.

Here are the three I’ve been using a lot:

  • Sin2[x] = (1-Cos[2x])/2
  • Cos2[x] = (1+Cos[2x])/2
  • Sin2[x] + Cos2[x] = 1

Bah.

« 10.5 Studying for Calc III »


Actions

  • rss Comments rss
  • trackback Trackback

Informations

  • Date : 30 November 2006
  • Categories : Mines

2 responses to “Trigonometric Identities”

Click to show trackbacks

30 Nov 2006
Sumocat Identicon Icon Sumocat (19:55:18) :

On the plus side, the third is just the Pythagorean Theorem, which you should have thoroughly memorized, and either of the other two rolls into the other. Fun stuff. And thanks for the list.

01 Dec 2006
dabeisyin Identicon Icon dabeisyin (14:21:07) :

what? i suddenly feel very stupid.

Leave a comment

You can use these tags : <a href="" title=""> <abbr title=""> <acronym title=""> <b> <blockquote cite=""> <cite> <code> <del datetime=""> <em> <i> <q cite=""> <strike> <strong>

Code: To include code, bracket it with [code language="php"] and [/code].
Example: [code language="php"] echo "Hello, World!"; [/code]

Plugin Help: If your requesting help about a plugin, please provide as much information as possible. At the very least, include your WordPress Version and the Plugin Version!