Question

(99)^3 evaluate this by using suitable identity

Answer 1

Step-by-step explanation:

(a-b)³=a³-3a²b+3ab²-b³

let a = 100 and b = 1 , then ( a - b ) = 99

then 99³ = 100³ - 3.100².1 + 3.100.1² - 1³

on simplifying, 99³ = 970299

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