Помогите второй вариант
1) sin2t+ cos2t=1 sin2t=1-cos2t sin2t=1-(0.6)2=1-0.36=0.64 sint=0.8 tg=sin t/cost= 0.6/0.8=0.3/0.4 ctgt=1/tgt=0.4/0.4