Question

42 Which is a multiplicative identity for integers
a) 0
b) 1
c) -1
d) None of the above​

Answer 1

Answer:

b) 1

Step-by-step explanation:

as any number x 1 = the number itself

ex.- 5 X 1 = 5

1/2 X 1 = 1/2

Answer 2

Answer:

b.) 1 is the multiplicative identity for integers (or any kind of number for that matter).

Step-by-step explanation:

Let x be an integer (or any kind of number)

=> x = x   (Universal fact)

=> 1*x = x

=> x = x             (LHS = RHS)

Thus, 1 is the multiplicative identity of integers (or any number).