Maths basic formula
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बीजगणितीय सूत्र
Important maths formula
Maths formula by Raj Kumar Sharma
Maths formula by Raj Coaching Centre
1. (a+b)2 = a2+2ab+b2
2. (a-b)2 = a2-2ab+b2
3. a2-b2 = (a+b)(a-b)
4. a2+b2 = (a+b)2 -2ab
5. a2+b2 = (a-b)2 +2ab
6. (a+b)3 = a3+b3+3ab(a+b)
7. (a+b)3 = a3+b3+3a2b+3ab2
8. (a-b)3 = a3-b3-3ab(a-b)
9. (a-b)3 = a3-b3-3a2b+3ab2
10. a3+b3 = (a+b)(a2 -ab+b2)
11. a3-b3 = (a-b)(a2 +ab+b2)
12. (a+b+c)2 = a2+b2+c2+2ab+2bc+2ca
13. (a+b-c)2 = a2+b2+c2+2ab-2bc-2ca
14. (a-b+c)2 = a2+b2+c2-2ab-2bc+2ca
15. (a-b-c)2 = a2+b2+c2-2ab+2bc-2ca
16. (-a-b-c)2 = a2+b2+c2+2ab+2bc+2ca
17. (-a-b+c)2 = a2+b2+c2+2ab-2bc-2ca
18. (-a+b-c)2 = a2+b2+c2-2ab-2bc+2ca
19. (-a+b+c)2 = a2+b2+c2-2ab+2bc-2ca
20. a3+b3+c3-3abc = (a+b+c)(a2+b2+c2-ab-bc-ca) 21. If a+b+c = 0 Then a3+b3+c3-3abc = 0
20+algebraic formula by #RajCoachingCentre #RajKumarSharma
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