Identify the following as rational number …
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Yogita Ingle 4 years, 4 months ago
a.3 √18
We have,
3 × √18
= 3 × √2 × 3 × 3
= 9×√2
Since, the product of a ratios and an irrational is an irrational number. 9 ×√2 is an irrational.
3 ×√18 is an irrational number.
(b) √(9/27)
We have,
√(9/27)
=3/√27
= 1/√3
Quotient of a rational and an irrational number is irrational numbers so
1/√3 is an irrational number.
√(9/27) is an irrational number.
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