Represent the following sets in tabular (or Roster) form :
`ZZ={x:x=(n+2)/(n^2-2)" where "2le n le 5 and n in NN}.`

Represent the following sets in tabular (or Roster) form : set of factors of 30

Represent the following sets in tabular (or Roster) form : Y={x:x is an even natural number greater than 20}

Represent the following sets in tabular (or Roster) form : X={a: a in NN" and a is a perfect square and " 2 lt a le49}

Express the following sets in Roster method, Y={ y:y in N and 1 le y le 8 },

Find which of the following sets are infinite and which are infinite sets: D={ n:n=x/(x+1) , where x in N and x lt 3 },

Let [x] represent the greatest integer less than or equal to x If [ sqrt(n^2+lambda)]=[sqrt(n^2+1)]+2 , where lambda,n in N , then lambda can assume (a) 2n+4 different values (b) 2n+5 different values (c) 2n+3 different values (d) 2n+6 different values

Find cos 2x if sin x=sqrt3/2 where 0 le x le pi/2

Find sin 2x if cos x=sqrt3/2 where 0 le x le pi/2

Find cos 2x if sin x=1/sqrt2 where 0 le x le pi/2

Which of the following sets are null sets? A=( n:n in N and n lt 4 and n gt 7 },