Login
Login
Sign up
Start
Mathmania
Teacher tutorials
TOP
Subjects
Bridge Course
Testworks
Subject updates
Ya+
News
Send feedback
See more
Contacts
About Us
Terms and Conditions
Privacy Policy
PDF chapter test
TRY NOW
Subjects
Mathematics CBSE
Class 9
Number System
Textbook Questions
7.
Exercise Problems I
Exercise condition:
5
m.
Classify the following numbers as rational or irrational.
(i)
\(2-\sqrt{5}\)
(ii)
\((3+\sqrt{23})-\sqrt{23}\)
(iii)
\(\frac{2\sqrt{7}}{7\sqrt{7}\)
(iv)
\(\frac{1}{\sqrt{4}\)
(v)
\(2\pi\)
Answer variants:
is an irrational number
is a rational number
Login
or
Fast registration
Previous exercise
Exit to the topic
Next exercise
Send feedback
Did you find an error?
Send it to us!