Questions & Answers
Question
Answers
Related Questions
Which of the following is irrational?
Answer
![Verified]()
Verified
Verified
(a) \[\sqrt {\frac{4}{9}} = \frac{3}{2}\] which is a rational number.
(b) \[\frac{{\sqrt {12} }}{{\sqrt 3 }} = \frac{{\sqrt {4 \times 3} }}{{\sqrt 3 }} = \frac{{2\sqrt 3 }}{{\sqrt 3 }} = 2\] Which is a rational number.
(c) \[\sqrt 7 \] is a irrational number.
(d) \[\sqrt {81} = 9\] which is a rational number.
Hence, (c) is the correct answer.
(b) \[\frac{{\sqrt {12} }}{{\sqrt 3 }} = \frac{{\sqrt {4 \times 3} }}{{\sqrt 3 }} = \frac{{2\sqrt 3 }}{{\sqrt 3 }} = 2\] Which is a rational number.
(c) \[\sqrt 7 \] is a irrational number.
(d) \[\sqrt {81} = 9\] which is a rational number.
Hence, (c) is the correct answer.
×
Sorry!, This page is not available for now to bookmark.
Like this
Liked
-
Courses-
Crash Courses 2021
-
Olympiads/NTSE/Others
-
Micro Courses
-
Vedantu Super Kids NEW
-
Reading & Spoken English -
FREEMaster Classes
-
PREMIUM1-on-1 Classes
-
Study Material
-
NCERT Solutions
-
Previous Year Papers
-
Mock Tests
-
Sample Papers
-
Reference Book Solutions
-
ICSE Solutions
-
School Syllabus
-
Revision Notes
-
Important Questions
-
Math Formula Sheets
-
-
More
Book your FREE Online counselling session
Share your contact information
Your FREE Online counselling session has been booked!
Vedantu academic counsellor will be calling you shortly for your Online Counselling session.
DONE
Please try again later
OK
NCERT Book Solutions
Reference Book Solutions
Toll Free:
1800-120-456-456
Mobile:
+91 988-660-2456
Toll Free:
1800-120-456-456
Mobile:
+91 988-660-2456
(Mon-Sun: 9am - 11pm IST)
Questions?
Chat with us
