I'm going to assume this reads

and the path
is parameterized by

with
. Under this parameterization,

and

Then in the integral,


(It's unlikely that an exact answer can be found in terms of elementary functions)
Answer:
-2
Step-by-step explanation:
12 to 2 is 6:1
24 to 4 is 6:1
32 to 6 is 16:3
48 to 8 is 6:1
So 32 to 6 is the one that isn’t equivalent. :)