Driehoek: Verskil tussen weergawes

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243 grepe bygevoeg ,  2 jaar gelede
Verwysing by te voeg
(meer oor Sferiese driehoeke)
(Verwysing by te voeg)
en
:<math> \cos \alpha = - \cos \beta \cos \gamma + \sin \beta \sin \gamma \cos a</math>
 
==Verwysings==
{{cite book
|title = Mathematical Handbook of Formulas and Tables
|first = Murray A
|last = Spiegel
|series = Schaum's Outline Series
|publisher = McGraw Hill Book Company
|location = New York
|language = Engels
|year = 1968}}
 
== Sien ook ==
6 253

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