Question

without actual calculation Evaluate
(999)³​

Answer 1

Answer:

{999}³=997002999

Step-by-step explanation:

{a-b}³=a³-b³-3ab{a-b}

={1000-1}=1000³-1³-3{1000}{1}{1000-1}

=1000000000-1-2997000

=997002999

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