M L Aggarwal Solutions for Chapter: Sets, Exercise 2: EXERCISE 1.2

Write the set as intervals:

$\left\{x:x\in R, -3<x\le 5\right\}$

Write the set as intervals:

$\left\{x:x\in R, -5<x<-1\right\}$

Write the set as intervals:

$\left\{x:x\in R, 2\le x\le 7\right\}$

Write the set as intervals:

$\left\{x:x\in R, 0\le x<3\right\}$

If the solution of $\left\{x:x\in R, x\le 5\right\}$ is $(-\infty ,a]$, then $a=$

If the solution of $\left\{x:x\in R, x<-3\right\}$ is $(-\infty ,a)$, then $a=$

If solution of $\left\{x:x\in R, x\ge -2\right\}$ is $[a,\infty )$, then $a=$

If $A=\left\{1,3,5\right\}, B=\left\{0,2,4,6,8\right\} \mathrm{and} C=\left\{2,3,4,6\right\}$ then the universal set for all the three sets $A,B \mathrm{and} C$ is $\Phi$