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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HP 32SII: Volume of a Square Frustum (Three Approaches in RPN)

HP 32SII: Volume of a Square Frustum (Three Approaches in RPN ) The volume of a square frustum is: v = height ÷ ...