Question

roaster form. a={x:x is month of the year}​

Answer 1

Answer:

In roster method, elements of the set are listed within the pair of brackets { } irrespective of order but element should not be repeated. Given question is about representing months of a year

So the answer is,

a = {January, February, March, April, May, June, July, August, September, October, November, December}

Answer 2

In Roster form, we write the set with the elements within curly brackets with no elements repeating.

Hence required set can be got by substituting various values of y from 4 onwards and getting the values of x such as = {4+3,5+3,6+3,7+3....} = {7,8,9,10....}

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