Ответы на вопрос:
cos^6 α + sin^6 α+ 3cos^2 α * sin^2 α=
=(cos^2 α + sin^2 α)(cos^4 α + sin^4 α -cos^2 α * sin^2 α)+3cos^2 α * sin^2 α=
=1*(cos^4 α + sin^4 α -cos^2 α * sin^2 α)+3cos^2 α * sin^2 α=
cos^4 α + sin^4 α -cos^2 α * sin^2 α+3cos^2 α * sin^2 α=
cos^4 α + sin^4 α +2cos^2 α * sin^2 α=
(cos^2 α + sin^2 α)^2=1
Популярно: Алгебра
-
UNNAMED322823.07.2022 07:21
-
лизя5ррр15.06.2021 16:30
-
jijafhv463612.06.2023 06:37
-
kostrigina200118.10.2021 13:04
-
олеся1411116.01.2023 02:58
-
qwerty202101.06.2022 03:58
-
justfrog44Arch20.11.2020 07:25
-
katerina34801.03.2023 05:32
-
shorgk29.03.2023 16:09
-
незнайка116211.09.2020 18:40