The Identities are:
a) x+ 3 = 3 + x
c) 6x - 2x = 4x
f) x * 1 = x
Answer: f & b
Explanation:
for example both leave the digits unchanged and an identity is an element of a set which, if combined with another element by a specified binary operation, leaves that element unchanged.
5.9m questions
7.7m answers