Question

what property is this? 1a = a
multiplicative inverse
multiplicative identity
commutative property of multiplication
distributive property

Explanation:

The multiplicative identity property states that any number multiplied by 1 is the number itself. In the expression 1a = a, 1 is the multiplicative identity. The multiplicative inverse of a number a is $\frac{1}{a}$ such that $a\times\frac{1}{a}=1$. The commutative property of multiplication is $ab = ba$. The distributive property is $a(b + c)=ab+ac$.

Answer:

Multiplicative Identity