InterviewSolution
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InterviewSolution
| 1. |
Right any three Identity |
| Answer» Identity I: (a + b)2\xa0= a2\xa0+ 2ab + b2Identity II:\xa0(a – b)2\xa0= a2\xa0– 2ab + b2Identity III: a2\xa0– b2= (a + b)(a – b)Identity IV: (x + a)(x + b) = x2\xa0+ (a + b) x + abIdentity V: (a + b + c)2\xa0= a2\xa0+ b2\xa0+ c2\xa0+ 2ab + 2bc + 2caIdentity VI: (a + b)3\xa0= a3\xa0+ b3\xa0+ 3ab (a + b)Identity VII: (a – b)3\xa0= a3\xa0– b3\xa0– 3ab (a – b)Identity VIII:\xa0a3\xa0+ b3\xa0+ c3\xa0– 3abc\xa0= (a + b + c)(a2\xa0+ b2\xa0+ c2\xa0– ab – bc – ca) | |