Question

999*999 Evaluate the given product without actual multiplication.

Answer 1

Answer:

== 999 * 999

== (1000 - 1) (1000 - 1)

== (1000 - 1)^2

== 1000000 + 1 - 2000

== 998001

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Answer 2

Answer:

998001

Step-by-step explanation:

Take 999 in both cases to be (1000-1)

Then the question becomes- (1000-1)(1000-1)

Now, we can apply the identity (a-b)^2

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

=> (1000 ^2)+ (1 ^2) - 2000

=> 1000000 +1 -2000

=> 998001