Question

Which of the following sets represents M∪N?

{2, 5, 8}
{4, 7}
{3, 4, 6, 7, 9}
{3, 6, 9}

Answer 1

the 3rd set, you're welcome my dude

Answer 2

Answer : {3, 4, 6, 7, 9}

To find the set that represents M∪N, we take union of M and N

For union of M and N, we consider all the numbers inside the circles M and N.

WE have 9 and 3 inside M. Also we have 6 inside N. 4 and 7 are in the intersection of M and N. So we consider 4 and 7 as well

M∪N = 9,3,6,4 and 7

{3, 4, 6, 7, 9} is the answer.