Dimdima
Online Children's Magazine from India
Dimdima
Online Children's Magazine from India
* (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
You have written second formula wrong . it is a2 - b2 = (a+b)(a-b)
JOHNSON
Quite useful to the younger one to develop.
RAHUL
Good Work. This will help a lot of students.
M.GANGADHAR
Please send formulas. 1+1.1+1.21+1.331+1.4641 total 6.1051
ANUBHAV MALVIYA
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
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
good work abijeet. try to add more. this is very useful mathematical formula at all level. share ur knowledge
R.SARAVANAN
Ya very nice problems. Very useful data. Thanku very much.
PRABHU.P
Please send forumula a^2+b^2=?
TANZEEM
Please include a2+b2 formula
MERINA
It provides knowledge . Well done !!
MERINA
It gives us knowledge but something is missing there.
MANEESH MAVI DURVESHPUR
Very good.
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Dimdima is the Sanskrit word for ‘drumbeat’. In olden days, victory in battle was heralded by the beat of drums or any important news to be conveyed to the people used to be accompanied with drumbeats.
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Dimdima.com, the Children's Website of Bharatiya Vidya Bhavan launched in 2000 and came out with a Printed version of Dimdima Magazine in 2004. At present the Printed Version have more than 35,000 subscribers from India and Abroad.