English

State with reason, whether the following is a surd. sqrtroot(3)(5) - Mathematics

Advertisements
Advertisements

Question

State with reason, whether the following is a surd.

`sqrtroot(3)(5)`

Give Reasons
Sum
Advertisements

Solution

`sqrtroot(3)(5)` is a surd

Reason:

`root(3)(5) = 5^(1//3)` is irrational but positive rational base 5, root 3.

Square root of this is `(5^(1//3))^(1//2) = 5^(1//6) = root(6)(5)`, which is a root of rational number 5.

It is irrational.

It’s a surd.

shaalaa.com
  Is there an error in this question or solution?
Chapter 1: Rational and Irrational Numbers - EXERCISE 1C [Page 15]

APPEARS IN

B Nirmala Shastry Mathematics [English] Class 9 ICSE
Chapter 1 Rational and Irrational Numbers
EXERCISE 1C | Q 1. (x) | Page 15
Share
Notifications

Englishहिंदीमराठी


      Forgot password?
Use app×