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Write a Pair of Irrational Numbers Whose Product is Rational. - Mathematics

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Question

Write a pair of irrational numbers whose product is rational.

Sum
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Solution

`(sqrt(3) + sqrt(2)) and (sqrt(3) - sqrt(2))` are irrational numbers whose product is rational.
Thus, we have
`(sqrt(3) + sqrt(2))(sqrt(3) - sqrt(2))`
= `(sqrt(3))^2 - (sqrt(2))^2`
= 3 - 2
= 1, which is a rational number.

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Chapter 1: Irrational Numbers - Exercise 1.2

APPEARS IN

Frank Mathematics [English] Class 9 ICSE
Chapter 1 Irrational Numbers
Exercise 1.2 | Q 5.6
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