rosen 7e function 2.3 q4

Question

Find the domain and range of these functions. Note that
in each case, to find the domain, determine the set of
elements assigned values by the function.
a) the function that assigns to each nonnegative integer
its last digit
b) the function that assigns the next largest integer to a
positive integer
c) the function that assigns to a bit string the number of
one bits in the string
d) the function that assigns to a bit string the number of
bits in the string

Comments

What specific doubt u have in this question can I know

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i found solution thanks for instant reply!