সর্বশেষঃ

গণিতের সকল সুত্র একসাথে

1.. (a+b)²= a²+2ab+b² 2.. (a+b)²= (a-b)²+4ab 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 = (a+b)²-(a-b)² 10.. ab = {(a+b)/2}²-{(a-b)/2}² 11.. (a+b+c)² = a²+b²+c²+2(ab+bc+ca) 12.. (a+b)³ = a³+3a²b+3ab²+b³ 13.. (a+b)³ = a³+b³+3ab(a+b) 14.. (a-b)³= a³-3a²b+3ab²-b³ 15.. (a-b)³=…

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