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 20S: Acoustics Programs

HP 20S: Acoustics Programs Program A: Speed of Sound in Dry Air cs = 20.05 × √(273.15 + T°C) Code: 01: 61, 41, A: LBL A 02: ...