Question
From the options, choose the irrational numbers that lie between 4 and 9.
Answer: Option B
:
B and C
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B and C
6×6 = 36, a perfect square, hence √36 is not irrational .
Also 25 is the perfect square of 5, hence √25 is rational.
42=16 & 92=81, hence all the numbers between √16 and √81 lie between 4 and 9.
We can see that √17, √31 are irrational numbers between √16 and √81, and they lie between 4 and 9.
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