Math, asked by anujraghu19, 1 year ago

using identities :express (999)^2

Answers

Answered by mailanvitharao

1

(a-b)²= a² - 2ab + b²

999 = 1000 - 1

999² = (1000-1)²

1000² + 2 × 1000 × 1 + 1²

1000000 - 2000 + 1

998000 + 1

998001

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