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Cardinal Number

If A=x:x is a...

Question

If $A = {x : x$ is a letter in the word 'QUARANTINE' $}$ , then the cardinality of $A$ is

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Solution

$A = {A, E, I, N, T, Q, R, U} \Rightarrow n (A) = 8$

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A = {x : x

is a letter in the word 'QUARANTINE'

}

, then the cardinality of

A

A = {x : x

is a letter in the word 'QUARANTINE'

}

, then the cardinality of

A

A = {x : x

is a letter of the word 'RAMANA'

}

B = {x : x

is a letter of the word 'MISSISSIPPI'

}

C = {x : x

is a letter of the word 'NOOKBOOK'

}

,
Then relation between cardinality of sets

A, B

C

A = {x : x

is a letter of the word 'RAMANA'

}

B = {x : x

is a letter of the word 'MISSISSIPPI'

}

C = {x : x

is a letter of the word 'NOOKBOOK'

}

,
Then relation between cardinality of sets

A, B

C

A = {X | X}

is a letter in the word "ACCOUNTANCY", then cardinality of

A

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Cardinal Number

Standard XIII Mathematics

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