Oblicz wartości pozostałych funkcji trygonometrycznych, jeżeli tgα = 3 i α ∈ (180⁰ ; 270⁰ )
tg[180⁰+α]=tgα
tgα=3
ctgα=⅓
a=1
b=3
c=√[3²+1²]=√10
sinα=3√10/10
cos α=1/√10=√10/10
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tg[180⁰+α]=tgα
tgα=3
ctgα=⅓
a=1
b=3
c=√[3²+1²]=√10
sinα=3√10/10
cos α=1/√10=√10/10