| Sr. No | সূত্র |
সূত্রের প্রয়োগ | ||
|---|---|---|---|---|
| 1 | (a+b)² = | a²+ 2ab + b² | ||
| 2 | (a+b)² = |
|
||
| 3 | (a-b)² = | a²-2ab+b² | ||
| 4 | (a-b)² = | (a-b)²-4ab | ||
| 5 | a² + b² = | (a+b)²-2ab | ||
| 6 | a²+b² = | (a-b)²+2ab | ||
| 7 | a²-b² = | (a+b)(a-b) | ||
| 8 | 2(a²+b²) = | (a+b)² + (a-b)² | ||
| 9 | 4ab = |
|
||
| 10 | (a+b+c)²= |
| ||
| 11 | (a+b)³ = | a³+3a²b + 3ab² + b³ | ||
| 12 | (a+b)³ = | a³ + b³ + 3ab (a+b) | ||
| 13 | (a-b)³ = | a³-3a²b+3ab²-b³ | ||
| 14 | (a-b)³= | a³-b³-3ab (a-b) | ||
| 15 | a³- b³= |
| ||
| 16 | a³+b³ = | (a+b)³-3ab(a+b) | ||
| 17 | a³-b³ = | (a-b) (a²+ ab + b²) | ||
| 18 |
| (a-b)³+3ab(a-b) | ||
Tags:
Mathematics
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