Question

Find the value of 102 power 2 by using suitable identitidentifying y

Answer 1

Answer-

By using (a+b)^2= a^2+b^2+2ab

⇒(100+2)²

⇒(100)² + (2)² + 2*100*2

⇒10000+4+400

⇒10404

Answer 2

Answer:

102^2 = (100+2)^2

          = 100^2 +2^2 +2 x 100 x 2  [Using (a + b)^2 = a^2 + b^2 +2ab]

          = 10000 + 4 + 400

          = 10000 + 404

          = 10404

I hope this helps you :)