Browse by Stream
QnA
Home
QnA
Go To Your Study Dashboard

Get Answers to all your Questions

header-bg qa
  • Home
  • NCERT
  • Put minus b in place of b in identity 1. Do you get identity 2?

Q : 1    Put -b in place of b in identity 1. Do you get identity 2?

Answers (1)

best_answer

Identity 1 \Rightarrow (a+b)^{2} = a^{2} + 2ab + b^{2}
 If we replace b with -b in identity 1 
We get,
              a^{2} + 2a(-b) + (-b)^{2} = a^{2} - 2ab + b^{2}
which is equal to 
                        (a-b)^{2}    which is identity 2
So, we get identity 2 by replacing b with -b in identity 1

Posted by

Gautam harsolia

View full answer

Similar Questions

Trending Articles/News

anam-khan

JNVST 2025 Class 6 registration ends today; apply at navodaya.gov.in

Latest Question