1) 1+tg²α= 2) tgα+ctgα= 3)cos2α= 4)cos72·cos18-sin72·sin18= 5) sin5π/7· cos2π/7 +cos5π/7·sin2π/7=
219
407
Популярно: Алгебра
-
Stasburlakov16.02.2020 00:47
-
ElizabethFoxEl08.05.2023 12:57
-
serguhovaannagmail22.07.2022 13:35
-
ДианочкаР08.09.2022 15:40
-
Елизавета9992915.09.2021 01:44
-
azharik2k1704.11.2020 02:25
-
LilauSen26.06.2023 02:13
-
Masha12fg12.05.2022 18:12
-
karinapoltawska06.12.2021 11:57
-
Hohlond09.08.2021 03:28