Question

2. Write the cardinal number of the following sets : D = {x : x is a letter of the word 'LOYAL'}​

Answer 1

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GIVEN:

• D = {x : x is a letter of the word 'LOYAL'}

FIND:

• cardial no. of the set = ?

SOLUTION:

we have,

D = {x : x is a letter of the world 'LOYAL'}

now,

D = {LOYA}

n(D) = {4}

Hence, n(D) = 4. so, Cardinal number of set is 4.

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Answer 2

{x : x is a letter of the word 'LOYAL'} = {L, O, Y, A}

cardinal number is no. of elements in a set

there fore cardinal number is 4.

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