The number of elements in the set $\{x \in R :(|x|-3)|x+4|=6\}$ is equal to
$3$
$2$
$4$
$1$
$x \neq-4$
$(|x|-3)(|x+4|)=6$
$\Rightarrow \quad|x|-3=\frac{6}{|x+4|}$
No. of solutions $=2$
Let $S = \{ 0,\,1,\,5,\,4,\,7\} $. Then the total number of subsets of $S$ is
Write the following sets in roster form :
$A = \{ x:x$ is an integer and $ – 3 < x < 7\} $
Examine whether the following statements are true or false :
$\{ a\} \in \{ a,b,c\} $
Which of the following are examples of the null set
$\{ x:x$ is a natural numbers, $x\, < \,5$ and $x\, > \,7\} $
State whether each of the following set is finite or infinite :
The set of numbers which are multiple of $5$
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