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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

Abhijeet Pattnaik
VIII B
Sundergarh, Orissa

prateek
28-Feb-2007

You have written second formula wrong . it is a2 - b2 = (a+b)(a-b)

Johnson
7-Mar-2007

Quite useful to the younger one to develop.

Rahul
29-May-2007

Good Work. This will help a lot of students.

M.GANGADHAR
20-Jan-2009

Please send formulas. 1+1.1+1.21+1.331+1.4641 total 6.1051

Anubhav Malviya
2-Feb-2009

Dear sir; please send me hints tricks and short cuts and formulae of Physics,Chemistry and Mathematics for PET and AIEEE level ASAP.along with if u have detailed solutions of mppet 2008 exam of above subjects (PCM)

shashank
8-May-2009

Please send me hints tricks and short cuts and formulae of Physics,Chemistry and Mathematics for PET and AIEEE level ASAP. Along with if you have detailed solutions of mppet 2008 exam of above subjects (PCM).

ajmal
19-Jul-2009

good work abijeet. try to add more. this is very useful mathematical formula at all level. share ur knowledge

r.saravanan
25-Aug-2009

Ya very nice problems. Very useful data. Thanku very much.

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