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CBSE Class 9 Answered

Respected teacher, how can we insert an irrational number between 2 and 2.5  
Asked by spankaj.ekt | 11 Apr, 2019, 07:28: PM
answered-by-expert Expert Answer
If a and b are two positive number such that ab is not a perfect square of a rational number then begin mathsize 16px style square root of ab end style is an irrational number lying between a and b.
According to the question,
a = 2 and b = 2.5
begin mathsize 16px style square root of ab equals square root of 2 cross times 2.5 end root equals square root of 5 end style
which is an irrational number between 2 and 2.5
Answered by Sneha shidid | 12 Apr, 2019, 09:37: AM

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