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CISCE(English Medium) ICSE Class 9
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Syllabus

Find the Square of : 3sqrt5 /5 - Mathematics

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Question

Find the square of : `[3sqrt5]/5`

Sum
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Solution

`( (3sqrt5)/5)^2= [3^2(sqrt(5))^2]/5^2`

`= [9 xx 5]/25`

`= 9/5`

`= 1 4/5`

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Q 2.1
Chapter 1: Rational and Irrational Numbers - Exercise 1 (B) [Page 13]

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Selina Concise Mathematics [English] Class 9 ICSE
Chapter 1 Rational and Irrational Numbers
Exercise 1 (B) | Q 2.1 | Page 13
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