1. for a = {1,3,5,7,9}, b = {2, 3, 4, 6, 7, 8} and the universal set u = {1, 2, 10}, determine the following: (a) an b. (b) aub. (c) a – b. (d) b – a. (e) a e b. (f) ā. (g) b.

Answer

(a) { 3,7 }

(b) { 1,2,3,4,5,6,7,8,9}

(c)  {1,5,9 }

(d)  {2,4,6,8}

(e)  { 3,7}

(f)  { 2,4,6,8,10}

{g}  {2,3,4,6,7,8}

Step-by-step explanation:

We have given A={1,3,5,7,9}, B={2,3,4,6,7,8}

Universal set U={1,2,3,4,5,6,7,8,9,10}

We have to find

(a) = {1,3,5,7,9} {2,3,4,6,7,8} ={ 3,7 }

(B) {2,3,4,6,7,8} ={ 1,2,3,4,5,6,7,8,9}

(c) A-B =  {1,3,5,7,9}- {2,3,4,6,7,8} = {1,5,9 }

(d) B-A = {2,3,4,6,7,8} - {1,3,5,7,9} = {2,4,6,8}

(E) = {1,3,5,7,9} { 2,3,4,6,7,8} = { 3,7}

(f) = {1,2,3,4,5,6,7,8,9,10} - {1,3,5,7,9} = { 2,4,6,8,10}

(g) B = {2,3,4,6,7,8}

3-4

step-by-step explanation:

the answer is 3-4 because both 45 and 60 has a multiple of 15.

45/3=15

60/4=15

therefore the odds against selecting a red is 4-3

7

step-by-step explanation:

the answer would be 7