Answer:
sin x=55/73
Sinz=48/73
cosx=48/78
cosz=55/73
Step-by-step explanation:
Using SOHCAHTOA
Answer: square root
The first one
{(5,3) , (6,1), (7,-1), (8,-3)}
inverse of (x,y) is (y,x)
inverse of { (3,5), (1, 6), ( -1, 7), (-3, 8)} is
x - 3y -15
x = -3