Question Error Report

Thank you for reporting, we will resolve it shortly

Back to Question

Q. The number of proper subsets of a set having $n + 1$ elements is

COMEDKCOMEDK 2014Sets

Solution:

If a set having n elements then its no. of subsets = $2^n$
$\therefore $ No. of proper subsets of a set having $(n + 1)$ elements = $2^{n+ 1} - 1$.