Question.
Let $R=\left\{\left(a, a^{3}\right): a\right.$ is a prime number less than 5$\}$ be a relation. Find the range of $R$. [CBSE 2014]
Let $R=\left\{\left(a, a^{3}\right): a\right.$ is a prime number less than 5$\}$ be a relation. Find the range of $R$. [CBSE 2014]
Solution:
We have,
$R=\left\{\left(a, a^{3}\right): a\right.$ is a prime number less than 5$\}$
Or,
$R=\{(2,8),(3,27)\}$
So, the range of $R$ is $\{8,27\}$.
We have,
$R=\left\{\left(a, a^{3}\right): a\right.$ is a prime number less than 5$\}$
Or,
$R=\{(2,8),(3,27)\}$
So, the range of $R$ is $\{8,27\}$.
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