Question

Which of the following sets have closure property w.r.t. addition and
multiplication?
i) {0}
ii) {1} iii) {0, -1} iv) {1,-1}
please tell me the answer of question no (iv)​

Answer 1

Answer:

iii

Step-by-step explanation:

0x-1 = 0

0+(-1) = -1

Both results belong to same set

Answer 2

Answer:

(0) is the set show additive or multiplicative closure property?