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Question

Which one of the following is a rational number?
  1. (2)2
  2. 22
  3. 2+2
  4. 22

A
22
B
2+2
C
22
D
(2)2
Solution
Verified by Toppr

We know, a rational number is a number that can be expressed as the quotient or fraction pq of two integers, a numerator p and a non-zero denominator q. Since q may be equal to 1, every integer is a rational number.

Here, (2)2=21=2 is a rational number.

Since 2 is irrational,
22, 2+2 and 22=12 are also irrational.

Hence, option A is correct.

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Similar Questions
Q1
Classify the following numbers as rational or irrational.
(2+2)(22)
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Q2
Classify the following number as rational or irrational:
(22)2.
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Q3
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Q4
Examine, whether the following numbers are rational or irrational:

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Q5

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