Friday, August 29, 2014

Why sin^2 x + cos^2 x = 1

Why does sin^2 x + cos^2 x = 1?  Find out in this video. 
 
 
- Eddie
 
 
 
 
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Spotlight: Sharp EL-5200

  Spotlight: Sharp EL-5200 As we come on the 13 th (April 16) anniversary of this blog, I want to thank you. Blogging about mathematic...