Compare the Following Pair of Surd. 4 Sqrt42 , 9 Sqrt 2. - Algebra

Compare the following pair of surd.

4 sqrt 42 , 9 sqrt 2

Solution

Since , 4 sqrt 42 = sqrt(16 xx 42) = sqrt 672 and

9 sqrt 2 = sqrt (81 xx 2) = sqrt 162

So , 4 sqrt 42   >   9 sqrt 2

Concept: Concept of Surds
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APPEARS IN

Balbharati Mathematics 1 Algebra 9th Standard Maharashtra State Board
Chapter 2 Real Numbers
Practice Set 2.3 | Q 5.5 | Page 30