Question

hii!! look at the worked example 11 on the top of the picture... please can you help me solve only part one of practise now 11.. thanks love you all​

Answer 1

Answer:

here , we need to learn some algebraic identities

Step-by-step explanation:

here, as in 1st question it is 102², now we have to break it , we can also write it as (100+2)² which is same as 102² . now we have an algebraic identity that is ( a+b)²= a²+ 2ab +b² , using this identity we can write it as 100²+ 2(100)(2) , ( taking 100 as a and 2 as b)

now , here , square of 100 is 10000 and 2×100 is 200 and 200×2 is 400 , thensquare of 2 is 4

the.n we get 10000+400+4 and then the square of 2 is 4 , then we get 10404 as answer . similarly we can solve the other left questions. this was very easy . if it was helpful then give a ❤ . may it will be helpful for you