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Posted by Oditi Sharma 4 years, 6 months ago

CBSE > Class 09 > Mathematics

1 answers

Sia ? 4 years, 6 months ago

Identity I: (a + b)² = a² + 2ab + b²

Identity II: (a – b)² = a² – 2ab + b²

Identity III: a² – b²= (a + b)(a – b)

Identity IV: (x + a)(x + b) = x² + (a + b) x + ab

Identity V: (a + b + c)² = a² + b² + c² + 2ab + 2bc + 2ca

Identity VI: (a + b)³ = a³ + b³ + 3ab (a + b)

Identity VII: (a – b)³ = a³ – b³ – 3ab (a – b)

Identity VIII: a³ + b³ + c³– 3abc = (a + b + c)(a² + b² + c² – ab – bc – ca)

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Posted by Sheikh Alfaz 1 month, 3 weeks ago

CBSE > Class 09 > Mathematics

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Don't post personal information, mobile numbers and other details.
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Posted by Yash Pandey 6 months, 1 week ago

CBSE > Class 09 > Mathematics