Question

if A = {2,5, 7, 8,a} and B- {18, 10, 1} find A DE 90​

Answer 1

Answer:

A∆B = {2, 5, 98, 10, 11}

Step-by-step explanation:

A= {2, 5, 7, 8, 98}

B= {7, 8, 10, 11}

A–B= {2, 5, 98}

B–A= {10, 11}

A∆B = (A–B) U (B–A) = {2, 5, 98} U {10, 11}

= {2, 5, 98, 10, 11}

Answer 2

Answer:

A∆B = {2, 5, 98, 10, 11}

Step-by-step explanation:

A= {2, 5, 7, 8, 98}

B= {7, 8, 10, 11}

A–B= {2, 5, 98}

B–A= {10, 11}

A∆B = (A–B) U (B–A) = {2, 5, 98} U {10, 11}

= {2, 5, 98, 10, 11}