SSC CHSL 04 Aug 2023 Shift 2 Paper

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Question : 62 of 100

Marks: +1, -0

Which of the following is an identity?

(a - b)² = a² - b²
(a + b)2 = a2 + b2 + 2ab
(a + b)2 = a2 + b2
(a - b)2 = a2 - b2 - 2ab

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