..to mozna obliczyc cos, i potem tg korzystając z dwóch wzrów:
s - sinus; c - cosinus; t - tangens
s = -24/25
s2 + c2 = 1
c2 = 1- (-24/25)^2 = (25^2 - 24^2) / (25^2) = 49 / (25^2)
c > 0 wiec c = 7/25
t = s/c = (-24/25) / (7/25) = -24/7 = -3 3/7
Odp A
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..to mozna obliczyc cos, i potem tg korzystając z dwóch wzrów:
s - sinus; c - cosinus; t - tangens
s = -24/25
s2 + c2 = 1
c2 = 1- (-24/25)^2 = (25^2 - 24^2) / (25^2) = 49 / (25^2)
c > 0 wiec c = 7/25
t = s/c = (-24/25) / (7/25) = -24/7 = -3 3/7
Odp A