Reflexive.
Identity
associative property
Commutativity.
no; commutative
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.
A*B=B*A is an example of the commutative property of multiplication.
The given form is ab = ba.This is multiplicative commutative property of equality.
Ab = 25 CD
The expression "A plus B equals AB" is not a standard mathematical equation. In traditional arithmetic, the plus sign (+) is used to indicate addition, where two or more numbers are combined to give a sum. However, in this case, it seems like the plus sign is being used as a concatenation operator, where the values of A and B are being combined as a single string of characters. Therefore, the statement "A plus B equals AB" would be interpreted as a string concatenation operation rather than a mathematical addition.
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.