Question

Let A ={5,9,13,17,21} B ={g,h,i,j,k} Then n(A) + n(B) is​

Answer 1

Step-by-step explanation:

given:-

•A= {5, 9, 13, 17, 21}

•B={g, h, I, j, k}

n(A)= 5

n(B)=5

so n(A) + n(B)= 5+5=10

extra information:----------

n(AuB)= n(A) + n(B) -n(AintersectionB)