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NCERT Solutions Class 9 Mathematics Solutions for Number System - Exercise 1.5 in Chapter 1 - Number System
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(3 +√23)- √23 is an irrational number.
Answer:
(3 +√23) –√23 = 3+√23–√23
= 3
= \frac{3}{1}
Since the number \frac{3}{1} is in p/q form, (3 +√23)- √23 is rational.
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