Question

Evaluate the following by using suitable identity:
999^2-1
​

Answer 1

Answer:

a^2-b^2- (a+b)(a-b)

999^2-1

 999^2-1^2= (999-1)(999+1)

                       = (998)(1000)

                        =998000

Answer 2

Answer:

998000 is right answer friend