Mathematical Formula


Mathematical Formula

Mathematical Formulas are very important and necessary for doing maths. 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. Please visit this page to get updates on more Math Shortcut Tricks. You can also like our facebook page to get updates.

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21 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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