Check sibling questions

If a² = 23/25, then a is

(a) rational   (b) irrational

(c) whole number   (d) integer


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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About the Author

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