Identify the following sets as null set or singleton set. (1) A= {x:xe N, 1<x< 2} (ii) B = The set of all even natural numbers which are not divisible by 2. (iii) C = {0}. (iv) D = The set of all triangles having four sides.

Identify the following sets as null set or singleton set. (1) A= {x:xe N, 1<x< 2} (ii) B = The set of all even natural numbers which are not divisible by 2. (iii) C = {0}.
(iv) D = The set of all triangles having four sides.

Gap-fill exercise

Fill in all the gaps, then press "Check" to check your answers. Use the "Hint" button to get a free letter if an answer is giving you trouble. You can also click on the "[?]" button to get a clue. Note that you will lose points if you ask for hints or clues!

(i) A= {}:: There is element in and in numbers..:: set
(ii) B = { }All numbers are by . :. B is set
(iii) C = {0} :: set
(iv) D={} :: triangle has sides. : D is a set.