Question

Which of the following is irrational?
a)√4/9
b)√12/√3
c)√7
d)√81​

Answer 1

Answer:

c)√7

Step-by-step explanation:

All the options can be reduced into rational forms

• a) √4/9 = 2/9 ( Rational )
• b) √12/√3 = √4 = 2 ( Rational )
• d) √81 = 9 ( Rational )

Only option C can't be reduced into Rational form.

Thus c)√7 is Irrational

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