Math, asked by babuchulbul2, 11 months ago

Give an example of a number x such that x^2 is an an irrational number and x^3 is a rational number.

Answers

Answered by amitnrw
4

Given :   a number x such that x square is an irrational number and its cube is a rational number  

To Find :  Give an example

Solution:

Real numbers can be rational number or irrational number

Rational numbers can be represented in form of p/q where p and q are integers and q ≠ 0.

Real numbers which are not rational are irrationals

x  =  ∛3    

x³  = 3    is a rational number

x² = (∛3 )²   is an irrational number  

Another example

x  =  ∛5    

x³  = 5    is a rational number

x² = (∛5 )²   is an irrational number  

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Answered by Grick
0

Answer:

(cube root of 3)³

Step-by-step explanation:

let x = cube root of 3

x² = (cube root 3)²

which comes 3⅔ so it's irrational and,

x³ = (cube root of 3)³

which comes 3³/³ it's cancels and after that comes 3 that's why it's rational .

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