If a² = 23/25, then a is

(a) rational   (b) irrational

(c) whole number   (d) integer

Ques 11 (MCQ) - If a² = 23/25, then a is - SQP Class 10 Maths - CBSE Class 10 Sample Paper for 2022 Boards - Maths Standard [MCQ]

part 2 - Question 11 - CBSE Class 10 Sample Paper for 2022 Boards - Maths Standard [MCQ] - Solutions of Sample Papers for Class 10 Boards - Class 10

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Transcript

Question 11 If a² = 23/25, then a is (a) rational (b) irrational (c) whole number (d) integer Given a² = 23/25 Taking square root a = ± √(23/25) a = ± √23/√25 a = ± √23/5 Since √𝟐𝟑 is irrational ∴ a = ± √23/5 is also irrational So, the correct answer is (b)

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