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Which of the following is irrational? A...

Which of the following is irrational?
A.`sqrt(4/9)`
B. `4/5`
C. `sqrt(7)`
D. `sqrt(81)`
ANSWER : C

Text Solution

Verified by Experts

Option(C) `sqrt7`
= `2.6457513116`, is a non terminating decimal expansion.
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