what are subsets?

Answer 1

In mathematics, especially in set theory, a set A is a subset of a set B, if A is "contained" inside B. The relationship of one set being a subset of another is called inclusion or containment.

Answer 2

Suppose A is a set of possible outcomes of a dice {1, 2, 3, 4, 5, 6}.

and B is the set of even numbers in a dice {2, 4, 6}.

Then B is called a subset of A .

That is If all the elements of B are in A and A have more elements than be then B is called a subset of A

Answer 3

A subset is a group of elements each of which belongs to the set.
Given a set containing the numbers 5, 8, 23, you may form subsets containing:
5
8
23
5, 8
5, 23
8, 23
or
5, 8, 23.

Answer 4

let n = # of the elements of the set
subset = 2^n
proper subset= 2^n - 1

Answer 5

If we are talking , for example, about the set of all real numbers R, then all the prime numbers are a subset of R, all the positive integers are another subset of R, all the irrational numers are a subset of R, etc.

Answer 6

Hey there!

Subsets are elements of one set are in the elements of another set.

One good example is complex numbers.

Real numbers are a subset of complex numbers.
Imaginary numbers are a subset of complex numbers.
Natural numbers are a subset of whole numbers.
Whole numbers are a subset of integers.
Integers are a subset of rational numbers.
Rational numbers are a subset of real numbers.

By the way, real numbers are numbers like 2, 5.4 and sqrt(6).
Imaginary numbers are any numbers that have the value of i with them i.e. 6i, sqrt(-4) and 2/3i.
Complex numbers are in the form a+bi. Example: 3+5i, 2+3i, 8 and 6i.

Hope it helps!

Answer 7

You asked a good question about sets and subsets.
When we say a set (let's call it A) is a subset of another
subset (let's call it B), that means that every element that is
in A is also in B.

In other words, you have a set of numbers that cam be found completely in another set of numbers. Here is an example;

Positive numbers are all numbers above zero.

Counting numbers are the numbers you use to count things.

All counting numbers are positive numbers. But there are numbers that are not counting numbers but they are positive.

Therefore counting numbers are a subset of positive numbers.

Answer 8

Subsets are sets within a set.

Answer 9

(B and C being random sets)

B is a subset of C if any element in B is also a member of C.