1)sina=√3/3 2ч
cosx=-√1-1/3=-√2/3=-√6/3
tgx=√3/3:(-√6/3)=-√2/2
ctgx=-√2
2)ctga=-3 4ч
sin²x=1:(1+cig²a)=1:(1+9)=1/10
sina=-√10/10
cosx=√1-1/10=√9/10=3√10/10
tgx=-1/3
3)tga=1/2 2ч
cos²a=1:(1+tg²a)=1:(1+1/4)=4/5
cosx=-2√5/5
sina=√1-4/5=√1/5=√5/5
ctga=2
4)cosa=1/7 1ч
sina=√1-1/49=√48/49=4√3/7
tga-4√3/7 : 1/7=4√3/7*7=4√3
ctga=1/4√3=√3/12