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It means that when you exchange the two operands, the result doesn't change.
Example 1: For any two real numbers, a + b = b + a. In the real numbes, addition is commutative.
Example 2: For any two real numbers, ab = ba. In the real numbers, multiplication is commutative.
Example 3: For square matrixes, AB is not the same as BA. Multiplication of matrixes is NOT commutative.
Example 4: For vectors, a x b = - b x a. The cross product of vectors is NOT commutative.
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An example of binary operation which is commutative but not associative?
NAND
Is subtraction of integers commutative?
It is no commutative.
Matrix multiplication is not commutative?
That is true, matrix multiplication is not commutative.
What is the reciprocal of number 72 in fraction form?
The multiplicative inverse of a quantity may, when the operation of multiplication is commutative, be called its reciprocal. Thus the reciprocal of 72 is 1/72.
Are matrix addition and matrix multiplication commutative?
Matrix addition is commutative if the elements in the matrices are themselves commutative.Matrix multiplication is not commutative.
