English

State whether true or false in the following: sqrt(8 – 1) = 7/sqrt(7) - Mathematics

Advertisements
Advertisements

Question

State whether true or false in the following: 

`sqrt(8 - 1) = 7/sqrt(7)`

True or False
Advertisements

Solution

This statement is true.

Explanation:

Step 1: Simplify the left-hand side (LHS)

`sqrt(8 - 1) = sqrt(7)`

Step 2: Simplify the right-hand side (RHS)

`7/sqrt(7) = 7/sqrt(7) xx sqrt(7)/sqrt(7)`

= `(7sqrt(7))/7`

= `sqrt(7)`

Step 3: Compare both sides

LHS = `sqrt(7)`

RHS = `sqrt(7)`

Since both are equal.

shaalaa.com
  Is there an error in this question or solution?
Chapter 1: Rational and Irrational Numbers - MISCELLANEOUS EXERCISE [Page 18]

APPEARS IN

B Nirmala Shastry Mathematics [English] Class 9 ICSE
Chapter 1 Rational and Irrational Numbers
MISCELLANEOUS EXERCISE | Q 7. (i) | Page 18
Share
Notifications

Englishहिंदीमराठी


      Forgot password?
Use app×