Question

Ques5. Write the cardinal number of each set .
P= {x:x is a whole number, x<11}
Q= {x:x is a prime factor of 72}​

Answer 1

Step-by-step explanation:

Given sets are:-

1)P= {x:x is a whole number, x<11}

Roaster form of P={0,1,2,3,4,5,6,7,8,9,10}

n(P)=11

Cardinal number of the set P=11

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2) Q= {x:x is a prime factor of 72}

Factors of 72=1,2,3,4,6,8,9,12,18,24,36,72

Prime factors of 72=2,3

Roaster form of Q={2,3}

n(Q)=2

Cardinal number of the set Q=2