State whether the following statement is True of False ?Justify your answer.√72√2 is not a rational number as √72and√2 are not integers.
A
True
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B
False
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Solution
The correct option is B False Irrational Number / Irrational Number = May or may not be an Irrational Number
√2=1.414…,√3=1.732…,√5=2.236…
√2√3=1.732…1.414…=1.2234…
We see the pattern which we get from dividing these numbers is non-repeating and non terminating. So this makes the entire number an irrational number. But,
5√5√5=5
Here, 5 is a rational number. Because of this, we say that when we divide two irrational numbers we may or may not get an irrational number.
In given question,
√72√2 is a irrational number.
Since √72√2=±61
We know that the division of two irrational no. may or may not be an irrational number.