ALGEBRA (बीजगणित )
Algebra formula(बीजगणित के सूत्र)
- (a + b)² = a² + 2ab + b²
- (a – b)² = a² – 2ab + b²
- (a – b)² = (a + b)² – 4ab
- (a + b)² = (a – b)² + (a – b)² + 4ab
- a² + b² = (a + b)² – 2ab
- a² + b² = (a – b) + 2ab
- a² – b² = (a + b) (a – b)
- (a + b)³ = a³ + 3a²b +3ab² + b³
- (a – b)³ = a³ + b³ + 3ab (a + b)
- (a – b)³ = a³ – 3a²b + 3ab² – b³
- (a – b)³ = a³ – b³ -3ab (a – b)
- a³ – b³ = (a + b) (a² – ab + b²)
- a³ + b³ = (a + b)³ – 3ab (a + b)
- a³ – b³ = (a – b) (a ²+ ab + b²)
- a³ – b³ = (a – b)³ + 3ab (a – b)
- a + b = (a³ + b³)/(a² + ab + b²)
- a – b = (a³ – b³)/(a² + ab + b²)
- (a + b)4 = a4 + 4a3b + 6a2b2 + 4ab3 + b4)
- (a – b)4 = a4 – 4a3b + 6a2b2 – 4ab3 + b4)
- a4 – b4 = (a – b)(a + b)(a2 + b2)
- a5 – b5 = (a – b)(a4 + a3b + a2b2 + ab3 + b4)
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