Дан тангенс половинного угла tg /2=a. Как найти значение тригонометрического выражения 1-2sin/2
1 week ago 00:07:56 1
1 week ago 00:22:07 246
2 weeks ago 00:09:57 1
3 weeks ago 00:16:54 252
![[Wild Mathing] #160. ДВИ ПО МАТЕМАТИКЕ В МГУ ЗА 17 МИНУТ! Вариант 2017 года](https://sun9-25.userapi.com/impg/HGvvs00ziH-NS6ICnvlFprImXGXebDyXgDr8_Q/Jy3_eVZ12E4.jpg?size=320x240&quality=95&keep_aspect_ratio=1&background=000000&sign=0915a28bfedfd3a1b0ab25572446c5f1&c_uniq_tag=fm1Azy8KuXRwNqCoPM36XS6vBadWP1ZHIgdjB6ruelY&type=video_thumb)
1 month ago 00:18:42 326
1 month ago 03:58:56 186
![[Школково ЕГЭ, ОГЭ, олимпиады] Тригонометрия с нуля и до ЕГЭ за 4 часа | №6, 7, 13 из ЕГЭ 2024 по математике](https://sun9-72.userapi.com/impg/Dcc8ORxN2zXGDkki9zSeJp2cDtFok6FqqVDRJg/mWCE7uI-2LU.jpg?size=320x240&quality=95&keep_aspect_ratio=1&background=000000&sign=151a768ce8690bfa88c2016e02763594&c_uniq_tag=uOgVHG3JO4VxLEJubZgQ9XcZiMhTvQK-gYsrX4f1pyc&type=video_thumb)
2 months ago 00:05:15 1
2 months ago 00:09:35 1
2 months ago 00:00:00 1
3 months ago 02:18:44 9
3 months ago 00:36:03 11
3 months ago 00:09:41 1
2 months ago 01:34:50 1
3 months ago 00:30:36 703
![[Ульяна Половинкина Математика] Производная С НУЛЯ. Правила дифференцирования. Разбор основных формул производных](https://sun9-40.userapi.com/impg/FE-PDJwVDxBVBO_ffQZctbxS7J45BkY624nq_A/Y2BqLzzIP8g.jpg?size=320x240&quality=95&keep_aspect_ratio=1&background=000000&sign=9923e5ff2012b5553ce2582aef947031&c_uniq_tag=BrHAYvqzX2C9Z6cM1_4yZyCTu2IfG0_R-o_PRF2TZeo&type=video_thumb)
4 months ago 00:18:51 5
4 months ago 00:28:39 7
4 months ago 00:17:23 30
4 months ago 00:25:06 22
4 months ago 01:39:02 24
4 months ago 01:26:15 6
4 months ago 01:25:20 40
4 months ago 00:16:29 3
4 months ago 00:37:32 111
4 months ago 00:39:48 47
