а) sinα=5/13;    cosα=12/13;    tgα=5/12;    ctgα=12/5

б) sinα=0,8;    cosα=0,6;    tgα=4/3;     ctgα=3/4

в) sinβ=(8√2)/6=(4√2)/3;    cosβ=4/6=2/3;    tgβ=(8√2)/4=2√2; ctgβ=4/(8√2)=1/(4√2)

г) sinβ=3/6=1/2;  cosβ=(3√3)/6=√3/2;  tgβ=3/(3√3)=1/√3;  ctgβ=(3√3)/3=√3