Question

If A contains 10 elements then total number of functions defined from A to A is

• A. 10
• B. $2^{10}$
• C. $10^{10}$
• D. $2^{10} - 1$

Answer 1

Answer: (C)

$10^{10}$

Answer 2

According to formula, total number of functions =$n^{n}$

Here, n = 10. So, total number of functions = $10^{10}.$