A
=
(
φ
1
–
φ
2
)
q
A
=
(
φ
1
–
φ
2
)
q
Close
Log in
Books
Repository
eAnswer
ePortfolio
Close
Log in
Books
Repository
eAnswer
ePortfolio
Log in
New user
OK
Error
Forgot?
Log in
Register
Recover
OK
Error
Change