The multiplicative identity of integer is

a × b = b × a

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a × 1 = 1 / a

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a × 1 = 1 × a = a

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a × 1 = 1 × a

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Solution

The correct option is C
a × 1 = 1 × a = a

An integer when multiplied with its multiplicative identity gives the integer itself.
So, the multiplicative identity is 1.

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Similar questions

For every integer $a$ , $a \times 1 = 1 \times a = a$ .
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Question 15

Which of the following is the multiplicative identity for an integer?

(a) a

(b) 1

(d) -1

Q - {1},

*

a * b = a b + 1.

*

Q - {1}

111 \times 31 - 441 = A A \div 3000 = B B - 1 = C

a, b, c

b (a + c) \neq 0

∣ ∣ ∣ ∣ \begin{matrix} a & a + 1 & a - 1 - b & b + 1 & b - 1 c & c - 1 & c + 1 \end{matrix} ∣ ∣ ∣ ∣ + ∣ ∣ ∣ ∣ ∣ \begin{matrix} a + 1 & b + 1 & c - 1 a - 1 & b - 1 & c + 1 (- 1)^{n + 2} a & (- 1)^{n + 1} b & (- 1)^{n} c \end{matrix} ∣ ∣ ∣ ∣ ∣ = 0

n

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