Let A = NÃ—N and â‹… be the binary operation on A defined by(a, b) â‹…(c, d) = (a + c, b + d) .
Channel: Doubtnut
Date: 2020-06-28

Let A = NÃ—N and â‹… be the binary operation on A defined by(a, b) â‹…(c, d) = (a + c, b + d) . Show that â‹… is commutative and associative. Find the identity element for â‹… on A, if any.