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: Casio fx-451 Calculator

Spotlight: Casio fx-451 Calculator Quick Facts Model: fx-451 Company: Casio Type: Solar Scientific Algebraic Memory: 1 (...