## Operations on 2 sets: 2. If A = {1,2,3,4,5,6,7} and B = {2, 4,6,8}. Cardinal number of A – B is:

Question

Operations on 2 sets: 2. If A = {1,2,3,4,5,6,7} and B = {2, 4,6,8}. Cardinal number of A – B is:

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3 weeks 2021-10-04T01:46:57+00:00 1 Answer 0 views 0

(a) 15

Step-by-step explanation:

Given sets,

A = {1, 2, 3, 4, 5},

B = {6, 7, 8},

Since, cardinality of a set is the number of elements in the set.

Also, if the cardinality of a set X is m and cardinality of set Y is n,

Then the cardinality of set X × Y = m × n

Here, cardinality of A = 5,

cardinality of B = 3

Hence, cardinality of A × B = 5 × 3 = 15

i.e. OPTION (a) is correct.

Find cardinality of a set :

brainly.in/question/12155357

Cardinality of difference of two sets :

brainly.in/question/12155357

THANKS 2

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