Write relation R = { left( {x,{x^3}} right):x is a prime number less than 10{rm{} }} in roster form.

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2.Relations and Functions

easy

Write the relation $R = \{ \left( {x,{x^3}} \right):x$ is a prime number less than $10{\rm{\} }}$ in roster form.

A

$\{ (2,8),(3,27),(5,125),(7,343)\} $

B

$\{ (2,8),(3,27),(5,125),(7,343)\} $

C

$\{ (2,8),(3,27),(5,125),(7,343)\} $

D

$\{ (2,8),(3,27),(5,125),(7,343)\} $

Solution

$R = \{ \left( {x,{x^3}} \right):x$ is a prime number less than $10\} .$ The prime numbers less than $10$ are $2,3,5$ and $7.$

$\therefore R=\{(2,8),(3,27),(5,125),(7,343)\}$

Standard 11

Mathematics

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