If a² = 23/25, then a is
(a) rational (b) irrational
(c) whole number (d) integer
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Last updated at Sept. 6, 2021 by Teachoo
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)
CBSE Class 10 Sample Paper for 2022 Boards - Maths Standard [MCQ]
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CBSE Class 10 Sample Paper for 2022 Boards - Maths Standard [MCQ]
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