Uzupełnij tabele z załącznika z obliczeniami.
Jest to trójkąt równoboczny, którego wysokość jest równa
h = a√3/2
sin30° = (a/2)/a = a/2 * 1/a = a/2a = 1/2
sin60° = h/a = (a√3/2)/a = a√3/2a = √3/2
cos30° = h/a = (a√3/2)/a = a√3/2a = √3/2
cos60° = (a/2)/a = 1/2
tg30° = (a/2)/h = (a/2)/(a√3/2) = 2a/2a√3 = 1/√3 * √3/√3 = √3/3
tg60° = h/(a/2) = (a√3/2)/(a/2) = 2a√3/2a = √3
ctg30° = h/(a/2) = (a√3/2)/(a/2) = 2a√3/2a = √3
ctg60° = (a/2)/h = (a/2)/(a√3/2) = 2a/2a√3 = 1/√3 * √3/√3 = √3/3
Funkcja trygonom 30° 60°
===================================
sin 1/2 √3/2
cos √3/2 1/2
tg √3/3 √3
ctg √3 √3/3
tabelka z rozwiązaniami w załączniku
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h = a√3/2
sin30° = (a/2)/a = a/2 * 1/a = a/2a = 1/2
sin60° = h/a = (a√3/2)/a = a√3/2a = √3/2
cos30° = h/a = (a√3/2)/a = a√3/2a = √3/2
cos60° = (a/2)/a = 1/2
tg30° = (a/2)/h = (a/2)/(a√3/2) = 2a/2a√3 = 1/√3 * √3/√3 = √3/3
tg60° = h/(a/2) = (a√3/2)/(a/2) = 2a√3/2a = √3
ctg30° = h/(a/2) = (a√3/2)/(a/2) = 2a√3/2a = √3
ctg60° = (a/2)/h = (a/2)/(a√3/2) = 2a/2a√3 = 1/√3 * √3/√3 = √3/3
Funkcja trygonom 30° 60°
===================================
sin 1/2 √3/2
cos √3/2 1/2
tg √3/3 √3
ctg √3 √3/3
tabelka z rozwiązaniami w załączniku