Commutativity.
The existence of the additive inverse (of ab).
Reflexive.
Identity
It is the additive property of equality, as the additive property of length, as applied to adjacent or parallel line segments.
Ab = 25 CD
associative property
The existence of the additive inverse (of ab).
Reflexive Property
Reflexive.
Identity
2ab
It is the additive property of equality, as the additive property of length, as applied to adjacent or parallel line segments.
yes because ab plus bc is ac
No. A times B = AB
Ab = 25 CD
Difficult to tell when you cannot use parentheses. a*(b+c) or a(b+c) = ab + ac This is known as the distributive property of multiplication over addition.
If, as is normal, ab represents a times b, etc then ab + ab + cc = 2ab + c2 which is generally not the same as abc.