Answers

2016-04-26T13:41:38+05:30
(998)²=(1000-2)²
We know that (a-b)²=a²-2ab+b²
Here,a=1000,b=2
(1000-2)²=(1000)²-2(1000)(2)+2²
⇒1000000-4000+4
⇒996004.
Therefore,(998)²=996004 .
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