Вычеслить. 1) cos (arccos 4/5) 2)sin(arcsin π/12 3) - вопрос №145212311738856 от marinka713 19.06.2021 03:56

Question

Алгебра: Вычеслить. 1) cos (arccos 4/5) 2)sin(arcsin π/12 3) tg(arctg 1) 4) arcsin (sin π/9) 5) arccos ( cos 8π/9) 6)arctg (tg 2)

marinka713 · Answer

1) cos (arccos 4/5) = 4/52) sin(arcsin π/12) = π/123)  tg(arctg 1) = 13) arcsin (sin π/9) = π/94) arccos (cos 8π/9) = 8π/95) arctg (tg 2) = 2 - π...