Write the following intervals in set-builder form :
$\left( { - 3,0} \right)$
$\left( { – 3,0} \right) = \{ x:x \in R, – 3\, < \,x\, < \,0\} $
Write down all the subsets of the following sets
$\emptyset $
What universal set $(s)$ would you propose for each of the following :
The set of right triangles
List all the elements of the following sers :
$F = \{ x:x$ is a consonant in the Englishalphabet which precedes $k\} $
The set $A = \{ x:x \in R,\,{x^2} = 16$ and $2x = 6\} $ equals
Are the following pair of sets equal ? Give reasons.
$A = \{ x:x$ is a letter in the word ${\rm{FOLLOW }}\} $
$B = \{ y:y$ is a letter in the word $WOLF\} $
