Question

evaluate by proper identity (102)3​

Answer 1

Hey friend, Here is your answer:-

(102)³ can be written as (100+2)³

We know that (a+b)³ = a³ + b³ + 3a²b + 3ab²

        Here, a = 100 and, b = 2

                                  = (100)³ + (2)³ + 3(100)²(2) + 3(100)(2)²

                                  = 1000000 + 8 + 3(10000)(2) + 3(100)(4)  

                                  = 1000000 + 8 + 60000 + 1200

                                  = 1061208

(102)³ = 1061208

Hope it helps...

Answer 2

Answer:

(102)3=(100+2)3

         =(100)3 +3(100)2+2(100)(2)2+(2)3

         =1000000+3(10000)(2)+300(4+8)

         =1000000+60000+1200+8

         =1061208

Explanation:

hope this is helpfull...