Question

which pair of the following no.'s are respectively the additive and multiplicative identities.
1) 2 & 0
2) 1 & -1
3) -1 & 0
4) 0 & 1

Answer 1

Answer:4) 0 & 1

The additive identity is 0

The multiplicative identity is 1

So in respectively 0&1

Step-by-step explanation:

Answer 2

Answer:

The correct pair is $1$ and $-1$.

Step-by-step explanation:

Additive Identity:-

• Additive identity, also known as the identity property of zero, is a property of numbers that states that when a number is added to zero it will return the number itself.
• Here, “Zero” is called the identity element.
• $a + 0 = a = 0 + a$

Multiplicative Identity:-

• Multiplicative Identity, also known as the identity property of multiplication, is a property that states that whenever a number is multiplied by the number $1$,  it will give the number itself as the product.
• $a \times 1 = 1 \times a = a$    ($a$ is any real number)

Among the given pairs, the pair $1 \&-1$ is the correct answer as for

Additive identity, $1+0=1$  and Multiplicative Identity, $-1\times1=1$.

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