Three ways of describing a set&Q.1(Part i,ii,iii,vii,ix,x,xi,xii)

Mathematics <br />Part 1 <br />Chapter 2 <br />Exercise 2.1 <br />Lesson#1 <br />Three ways of describing a set& <br />Q.1(i,ii,iii,vii,ix,x,xi,xii)