Ответы на вопрос:
(2sin3d - 3cos3d)² + (2cos3d + 3sin3d)² =
= 4sin²3d - 12sin3dcos3d + 9cos²3d + 4cos²3d + 12sin3dcos3d + 9sin²3d = 13sin²3d + 13cos²3d = 13(sin²3d + cos²3d) = 13 * 1 = 13
Популярно: Алгебра
-
ValeriaIv17.09.2020 05:18
-
St1ler10.03.2023 10:56
-
mashacherevchenko17.01.2020 06:37
-
wartander59504.01.2023 10:46
-
gavrikovakateri01.03.2020 10:50
-
DASHA13511128.05.2020 10:12
-
dilovardustiev102.07.2020 07:45
-
kolzov15.02.2021 23:50
-
noniqname18.11.2022 17:07
-
95Laura9524.05.2020 17:36