Odpowiedź:
Szczegółowe wyjaśnienie:
ĆWICZENIE 1
a)
sin α = 3/5, cos α = 4/5, tg α = 3/4, ctg α = 4/3
b)
sin α = 8/17, cos α = 15/17, tg α = 8/15, ctg α = 15/8
c)
sin α = 5/13, cos α = 12/13, tg α = 5/12, ctg α = 12/5
ĆWICZENIE 2
Trójkąt prostokątny ma dwa kąty ostre: α i β = 90 - α
a)
sin α = 9/15 = cos β, cos α = 12/15 = sin β, tg α = 9/12 = ctg β,
ctg α = 12/9 = tg β
b)
sin α = √11/6 = cos β, cos α = 5/6 = sin β, tg α = √11/5 = ctg β,
ctg α = 5/√11 = tg β
c)
sin α = 7/25 = cos β, cos α = 24/25 = sin β, tg α = 7/24 = ctg β,
ctg α = 24/7 = tgβ.
