Mathematical Formula


Mathematical Formula

Competitive exams are fill with maths where you need mathematical formula. So, Mathematical Formulas are very important and necessary for doing maths.

Here in this page we put together all basic mathematical formula. You need these formulas in your exams. So, you need to memorize these math formula very before your exam. Here we provide few basic mathematical formula which will help you to do maths in your competitive exams.


 

 

All Algebra Formula:

  • (a + b)2 = a2 + 2ab + b2
  • (a − b)2 = a2 − 2ab + b2
  • a2 + b2 = (a + b)2 − 2ab
  • a2 + b2 = (a − b)2 + 2ab
  • (a + b)3 = a3 + b3 + 3ab(a + b)
  • (a − b)3 = a3 − b3 − 3ab(a − b)
  • a3 + b3 = (a + b)3 − 3ab(a + b)
  • a3 − b3 = (a − b)3 + 3ab(a − b)
  • a2 − b2 = (a + b)(a − b)
  • a3 − b3 = (a − b)(a2 + ab + b2)
  • a3 + b3= (a + b)(a2 − ab + b2)
  • a4 – b4 = (a2 – b2)(a2 + b2) = (a + b)(a + b)(a2 + b2)
  • a4 + b4 = (a2 + b2)2 – 2a2b2 = (a2 + √2ab + b2)(a2 – √2ab + b2)
  • a5 + b5 = (a + b)(a4 – a3b + a2b2 – ab3 + b4 )
  • a5 – b5 = (a – b)(a4 + a3b + a2b2 + ab3 + b4)
  • an − bn = (a − b)(an−1 + an−2 b + an−3 b2 + ··· + bn−1n−1)
  • (a + b + c)2 = a2 + b2 + c2 + 2(ab + bc + ca)
  • a3 + b3 + c3 – 3abc = (a + b + c)(a2 + b2 + c2 – ab – bc – ca)
  • If a + b + c = 0, then the above identity reduces to a3 + b3 + c3 = 3abc

 

 

Few Other Math Formulas:

 

So, here we provide few Mathematical Formula. Also visit this page to get updates on more Math Shortcut Tricks. Meanwhile you can also check our facebook page to get more updates.

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23 comments

  1. anonymous says:

    i really enjoyed this site..all the shortcuts and formulas at one site..extraordinary… it would be nice if mensuration formulas included…

  2. vyom says:

    i really enjoyed this site..all the shortcuts and formulas at one site..extraordinary… it would be nice if mensuration formulas included…

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