Question

Which of the following is irrational ?

a)√-4/9
b)√12/√3
c)√7
d)√81​

Answer 1

Answer:

c)

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Answer 2

Answer:

c)$\sqrt{7}$

As a) is virtual number as there is a negative sign inside root, b) can be simplified to 2 and d) can be simplified to 9

Step-by-step explanation:

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