Question

If A={1,3,2,7} then write all the subset of A.​

Answer 1

Answer:

{1},{2},{3},{7},{1,3},{1,2},{1,7},{3,2},{3,7},{2,7},{1,3,2},{1,3,7},{1,2,7},{3,2,7},{}, {1,3,2,7}

Step-by-step explanation:

Every set is subset of itself.

Null set is subset of every set.

Set having 4 elements have 2^4= 16 subsets.

Answer 2

Answer:

Subsets of A = { }, {1}, {2}, {3}, {7}, {1, 2}, {1, 3}, {1, 7}, {2, 3}, {2, 7}, {3, 7}, {1, 2, 3}, {1, 2, 7}, {1, 3, 7},

{2, 3, 7}, {1, 2, 3, 7}

Step-by-step explanation:

We are given,

A = {1, 2, 3, 7}

Now, just for a reference, let's see how many subsets it has.

So, we know that,

If a set contains 'n' number of elements then, its number subsets are 2^n.

Here,

n(A) = 4

So,

Subsets of set A = 2⁴

Subsets = 16

So, Set A has 16 subsets, now let's write then down,

Subsets of A = { }, {1}, {2}, {3}, {7}, {1, 2}, {1, 3}, {1, 7}, {2, 3}, {2, 7}, {3, 7}, {1, 2, 3}, {1, 2, 7}, {1, 3, 7},

{2, 3, 7}, {1, 2, 3, 7}

Hence,

These are the Subsets of Set A.