Given f: A → B is an injection
And also given that range of f = {a}
So, the number of images of f =
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Since, f is an injection, there will be exactly one image for each element of f .
So, number of elements in A =
.
Given f: A → B is an injection
And also given that range of f = {a}
So, the number of images of f =
Since, f is an injection, there will be exactly one image for each element of f .
So, number of elements in A =
.