Evaluate using suitable identities 999×1000

Answers 1

Answer:

(999)

=(1000−1)

=(1000)

−(1)

−3(1000)(1)(1000−1).........................(∵(x−y)

−y

−3xy(x−y))

=1000000000−1−3000(999)

=1000000000−1−2997000=997002999

Explanation:

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