Exercise
Q(
2)(3)
equals
Q(2)
Q(3)
Q(2 + 3)
No, 3 is not in Q(2).
3 is not in Q(2).
No, 2 is not in Q(3).
2 is not in Q(3).
Yes, 1/(2 + 3)
= 3 - 2.
Hence 2 =1/2
(2 + 3) - (3 - 2) is in Q(2 + 3). Similarly, 3
is contained in
Q(2 + 3) and we easily find that
Q(2 + 3) =
Q(2)(3).
2 + 3)
= 3 - 2.
Hence 2 =1/2
(2 + 3) - (3 - 2) is in Q(2 + 3). Similarly, 3
is contained in
Q(2 + 3) and we easily find that
Q(2 + 3) =
Q(2)(3).