Question

pls snswer correctly friends
i am in workshop​

Answer 1

Step-by-step explanation:

U={1,2,3,4,5,6,7,8,9,11}

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

n(A)=5

B={2,5,6,7,9}

n(B)=5

A U B={1,2,3,4,5,6,7,9}

n(A U B)=8

A intersection B={2,5}

n(A intersection B)=2

n(AUB)+n(A intersection B)=n(A)+n(B)

8+2. = 5+5

10. = 10