Answer:

Step-by-step explanation:
u v




To find 
Now we can apply the above expression
W(s, t) = F(u(s, t), v(s, t))
(1,-9)=((u(1, -9), v(1, -9)), (u(1, -9), v(1, -9))) · ((1, -9), (1, -9))
=(
(3, 0),
(3, 0)) · (9, -6)

To find
:
(1,-9)=((u(1, -9), v(1, -9)), (u(1, -9), v(1, -9))) · ((1, -9), (1, -9))
= (
(3, 0),
(3, 0)) · (4, 7)
