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Formulas of Maths

* (a+b)2 = a2 + b2 +2ab * a2 - b2 = (a+b) (a-b) * (a-b)2 = a2 + b2-2ab * (a+b)3 = a3 + b3 +3a2 b+3ab2 * (a-b)3 = a3 - b3 - 3a2 b+3ab2 * (a+b+c)3 = a3 +b3 +c3+2ab +2bc+2ac * (x+a)(x+b) = x2 + x(a+b) + ab * Area of a rectangle = Length*Breadth * Perimeter of a rectangle = 2(Length + Breadth) * Area of a Square = Side * Side * Perimeter of a Square = 4 * Side * Area of a parallelogram = Base * Height * Area of a triangle = ½ * Base * Height * Area of a trapezium = ½ * Height *(Base1 + Base2) * Area of a circle = p * (radius)2 * Circumference of a circle = 2 * p * radius