Encuentra las funciones faltantes y el A y B

Cos = 6/7
A=c-b sen a =3.6/7 = 30° 56
A=7-6 cos a = 6/7 = 31° 0
A=49-36 tg a =3.6/6= 30° 57
A=13 sen b =6/7=59°
A=3.6 cos b =3.60/7=59°
Tg b =6/3.6=59°

Sen = 3/10
B=c-a sen a =3/10=17° 27
B=10-3 cos a=9.5/10=18° 11
B=100-9 tg a =3/9.5=17° 31
B=91 sen b= 9.53/10= 72°
B=9.5 cos

b =3/10= 72°
Tg b = 9.53/3 = 72°

Tg= 9/7
C= a+b sen a = 9/11.40 =52°
C=9+7 cos a = 7/11.40 = 52°
C= 81+49 tg a = 9/7 =52°
C=130 sen b = 7/11.40=37°
C= 11.40 cos b = 9/11.40 = 37°
Tg b = 7/9 =37°

Tg = 36/35
C= a+b sen a =35/1.5= 44° 27
C=35+36 cos a =36/1.5= 44° 36
C=1.225+1.296 tg a = 35/36= 44° 11
C=2.521 sen b =36/1.5= 87° 36
C=1.5 cos b =35/1.5= 87° 36
Tg b = 36/35 = 87° 36

Cos = 7/21
A=c-b sen a =19.7/7= 20° 48
A=7-21 cos a =21/7= 70° 31
A=49-441 tg a =19.7/21= 46° 49
A=392 sen b =21/7= 19° 28
A=19.7 cos b =19.7/7= 69° 11
Tg b = 21/19.7=43° 10

Sen = 5/36
B=c-a sen a = 5/36= 7° 59
B=36-5 cos a =35/36= 13° 32
B=1296-25 tg a =5/35= 8° 7
B=1271 sen b =35/5= 76° 27
B= 35 cos b =5/36= 82° 0
Tg b =35/5= 81° 52