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

Remove Ads

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)

Davneet Singh's photo - Co-founder, Teachoo

Made by

Davneet Singh

Davneet Singh has done his B.Tech from Indian Institute of Technology, Kanpur. He has been teaching from the past 14 years. He provides courses for Maths, Science and Computer Science at Teachoo