Ответы на вопрос:
Сos²2x + cos6x - sin²2x = 0 cos4x + cos6x = 0 2cos5xcosx = 0 cos5x = 0 или cosx = 0 5x = π/2 + πk, k ∈z x = π/2 + πn , n ∈z x = π/10 + πk/5, k ∈z
Популярно: Алгебра
-
Iranmlp09.08.2020 06:56
-
аліна5521.05.2020 08:12
-
Нм6шиш27.05.2022 01:28
-
Denaz16.08.2022 06:47
-
Elena20720712.04.2020 15:04
-
danabekzanova10.05.2023 09:48
-
SpOoN77710.04.2022 07:17
-
Shakhmilova00123.06.2023 22:39
-
Тихий2317.05.2022 05:04
-
olgafajzulloev27.06.2023 14:07