Write the following sets in roster form :

$A = \{ x:x$ is an integer and $ - 3 < x < 7\} $

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$A = \{ x:x$ is an integer and $ - 3 < x < 7\} $

The elements of this set are $-2,-1,0,1,2,3,4,5$ and $6$ only.

Therefore, the given set can be written in roster form as $A=\{-2,-1,0,1,2,3,4,5,6\}$

Similar Questions

Which of the following sets are finite or infinite.

The set of positive integers greater than $100$

Match each of the set on the left described in the roster form with the same set on the right described in the set-builder form:

$(i)$  $\{ P,R,I,N,C,A,L\} $ $(a)$  $\{ x:x$ is a positive integer and is adivisor of $18\} $
$(ii)$  $\{ \,0\,\} $ $(b)$  $\{ x:x$ is an integer and ${x^2} - 9 = 0\} $
$(iii)$  $\{ 1,2,3,6,9,18\} $ $(c)$  $\{ x:x$ is an integer and $x + 1 = 1\} $
$(iv)$  $\{ 3, - 3\} $ $(d)$  $\{ x:x$ is aletter of the word $PRINCIPAL\} $

 

Write the following sets in the set-builder form :

$\{ 3,6,9,12\}$

Let $A=\{1,2,\{3,4\}, 5\} .$ Which of the following statements are incorrect and why ?

$\varnothing \subset A$

Write the solution set of the equation ${x^2} + x - 2 = 0$ in roster form.