trigonometrie
DESCRIPTION
TrigonometrieTRANSCRIPT
APLICAIILE TRIGONOMETRIEI N GEOMETRIE
APLICAIILE TRIGONOMETRIEI N GEOMETRIE
Fie un triunghi oarecare ABC cu notaiile obinuite: AB=c, AC=b, BC=a, R-raza cercului circumscris, r -raza cercului nscris, ha=lungimea nlimii duse din A, p-semiperimetrul.Teorema sinisurilor. .
Teorema cosinusurilor:.
Teorema tangentelor: i .Teorema proieciilor: .Formulele lui Karl Mollweide: ; .Aplicaii:
1. ; ;
2. .3. .
4. ; ; .5. ; .PAGE 2
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