Evaluate {(999)'2-1}
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Answered by
1
1000 is a correct answer
Answered by
3
Answer:
Given : {(999)
2
−1}
The given question can be written as
{(999)
2
−1
2
}
Using the formula (a
2
−b
2
)=(a+b)(a−b)
{(999)
2
−1
2
}=[(999+1)(999−1)]
On further calculation,
{(999)
2
−1
2
}=1000×998
{(999)
2
−1
2
}=998000
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