what is universal set and subset

If A and B are sets such that each element of A is an element of B, then we say that A is a subset of B and write A B. ..

In any application of the theory of sets, the members of all sets under consideration usually belong to some fixed large set called the universal set. Usually we denote the universal set by the letter..

Let U be a universal set, A be any subset of U, then the elements of U which are not in A i.e., U - A is the complement of A w.r.t. U is written as A' = U - A = A c ..

Select the correct statement(s). I. Set of squares is a subset of set of rhombuses. II. Set of squares is a subset of set of rectangles. III. The diagonals of a rhombus divide it into 4 congruent triangles. => I and II only or II and III o..

..

Find the number of 3 element subsets that can be formed from the set {a, b, c, d, e, f, g, h} . => 6 or 56 or 336 or 1..

Name the subset(s) of the real numbers to which '- 34' belongs. => whole numbers, integers, rational numbers, real numbers or natural numbers, whole numbers, integer numbers, rational numbers, real numbers or integers, rational numbers, real numbers or irrational numbers, real numbers..

Introduction - In Mathematics, a well-defined collection of definite objects is called a set. George Cantor is regarded as the "Father of Set theory". The concept of "Sets" is basic in all branches of mathematic..

Sets..