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(1) Equal
b) Define universal set and subset with examples.
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Sagot :

Answer:

Step-by-step explanation:

1)  IF EVERY ELEMENT OF SET "A" IS IN SET "B" AND VICE VERSA THEN IT IS KNOWN TO BE AS EQUAL SETS    lets A and B be the sets where

 A={1,2,3,4}

 B={1,2,3,4}

 HERE A=B AND KNOWN TO BE AS EQUAL SETS.

2) THE SET WHICH IS A SUBSET OF EVERY SET IS KNOWN AS UNIVERSAL SET WHICH IS DENOTED BY "U"

Lets take an example

U={1,2,3,4,5,6,7,8,9,10......}

A={1,2,3,4,}

B={6,7,8,9}

here both A and B are subsets of the universal set "U"

IF ALL ELEMENTS OF SET "A" IS IN SET "B" BUT NOT ITS VICE VERSA THEN IT IS SAID TO BE SUBSET

lets take an simple example

A={1,2,3,4}

B={1,2,3,4,5,6}

here every element of set "A" is present in set "B" but all elements of set "B" is not in set "A", so we can say that "A" is subset of "B"

also we can denote it by

     A⊂B

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