Odpowiedź:
Odpowiedź: (5cosa - 4sina)/3sina = - 2 to tga = - 5/2
Szczegółowe wyjaśnienie:
15.
(5cosa - 4sina)/3sina = - 2 to
5cosa/3sina - 4sina/3sina = - 2 to
(5/3)ctga - 4/3 = - 2 /•3 to 5ctga - 4 = - 6 to
5ctga = - 6 + 4 to 5ctga = - 2 /:5 to ctga = - 2/5
[sina/cosa = tga, cosa/sina = ctga, to 1/tga = ctga, 1/ctga = tga] to
1/tga = -2/5 to tga = - 5/2
Odpowiedź: (5cosa - 4sina)/3sina = - 2 to tga = - 5/2
