вычислите :: Чем заняться? https://chemzanyatsa.com/vychislite.html вычислите :: Чем заняться? https://chemzanyatsa.com/images/rss.png https://chemzanyatsa.com/vychislite.html [tg(a)+1]:[2tg(a)-1]=(5/4+1):(5/2-1)=9/4:3/2=3/2=1,5. [2ctg(a)-1]:[2+ctg(a)]=(-1-1):(2-1/2)=-2:(3/2)=-4/3. Tue, 23 Feb 2016 12:04:46 +0300 https://chemzanyatsa.com/vychislite.html#c1066 https://chemzanyatsa.com/vychislite.html#c1066 вычислите https://chemzanyatsa.com/vychislite.html#c1066