Commutativity.
The existence of the additive inverse (of ab).
It is the additive property of equality, as the additive property of length, as applied to adjacent or parallel line segments.
Identity
Reflexive.
Ab = 25 CD
associative property
The existence of the additive inverse (of ab).
Reflexive Property
It is the additive property of equality, as the additive property of length, as applied to adjacent or parallel line segments.
Identity
Reflexive.
yes because ab plus bc is ac
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.
Ab = 25 CD
If, as is normal, ab represents a times b, etc then ab + ab + cc = 2ab + c2 which is generally not the same as abc.
C minus B equals AB
the midpoint of AB.