Yes an No.
You can have blood type AB in following situations:
AO+BO
AO+BB
AA+BO
AA+BB
AB+BB
AA+AB
AB+AB
So there's more possible ways to get type AB other than the combination of ABs.
yes because ab plus bc is ac
2ab
Commutativity.
No. A times B = AB
The existence of the additive inverse (of ab).
associative property
the midpoint of AB.
C minus B equals AB
ab=1a+1b a is equal to either 0 or two, and b is equal to a
If, as is normal, ab represents a times b, etc then ab + ab + cc = 2ab + c2 which is generally not the same as abc.
No, A+B is left as A+B AB would be A x B
NM equals 2x + 1, as stated in the question!