Question

Find the number of proper subsets of the set X = { a, b, c, x, y, z}

Answer 1

Answer:

Given X = {a, b, c, x, y, z}.

Then, n(X) = 6

The number of subsets = n[P(X)] = 2⁶

= 64

The number of proper subsets = n[P(X)] – 1

= 2⁶ – 1

= 64 – 1

= 63