Answer:
A
Step-by-step explanation:
(2m-n) is a factor of 4(2m-n)
Answer:
2017-2018
Step-by-step explanation:
I assume each path
is oriented positively/counterclockwise.
(a) Parameterize
by

with
. Then the line element is

and the integral reduces to

The integrand is symmetric about
, so

Substitute
and
. Then we get

(b) Parameterize
by

with
. Then

and

Integrate by parts with



(c) Parameterize
by

with
. Then

and

Answer:
The 1st and 4th statements are true.