Ответ: (sin^2t/1+cost)+sint*ctgt=(sin^2t/1+cost)+(sint*cost/sint)=(sin^2t/1+cost)+cost=sin^2t+cost+cos^2t=1+cost/1+cost=1.
Источник znanija.site
Ответ: (sin^2t/1+cost)+sint*ctgt=(sin^2t/1+cost)+(sint*cost/sint)=(sin^2t/1+cost)+cost=sin^2t+cost+cos^2t=1+cost/1+cost=1.
Источник znanija.site