Question

if a ={3,4,5,6,7,8} and b={2,4,6,8,10,12} find the following sets​

Answer 1

Answer:

sorry I don't know the answer for this

Answer 2

Explanation:

a ={3,4,5,6,7,8}

n(A) = 6

b={2,4,6,8,10,12}

n(B) = 6

AUB = {3,4,5,6,7,8}U{2,4,6,8,10,12}

= { 2,3,4,5,6,7,8,10,12}

n(AUB) = 9

AnB = {3,4,5,6,7,8}n{2,4,6,8,10,12}

= { 4,6,8}

n(AnB) = 3

n(AUB) = n(A) + n(B) - n(AnB)

9 = 6+6-3

9 = 9

hence verified

B/A = B-A ={2,4,6,8,10,12} / {3,4,5,6,7,8}

= { 2,12,10}

n(B/A) = 3 = n(B) only

A/B = A - B = {3,4,5,6,7,8} - {2,4,6,8,10,12}

= { 3,5,7}

n(A/B) = 3 = n(B) only

n(AUB) = n(A) only + n(B) only + n(AnB)

9 = 3+3+3

9=9

all I know is given of write I am happy but not sorry for your waste of time