evaluate (99)^3 by using suitable identity
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Answer:
to evaluate 99³ using one of the algebraic identities
Step-by-step explanation:
99³ = (100 - 1)³
=> 100³ - 1³ - 3×100×1 ( 100 - 1 )
identity used: [ (a-b)³ = a³-b³-3ab(a-b) ]
=> 10000 - 1 - 300 (99)
=> 1000000 - 1 - 29700
=> 9,70,299 Answer
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