Mongge
Exercises
Collections
Editor
Català
English
Español
Euskera
Italiano
Sign in
Sign up
Sign up
Ejercicio 2
lopezruizana
1/20/16
1,748
Follow
Answer
Solution
}
}
}
}
}
r
V
r
1
-a
1
-b
1
H
1
r'
a'
a
b
b'
URL of the exercise
Embed code
