Download our Android app to get updates on your mobile

Important Formulas - Numbers - Tricks & Shortcuts

         i.            (a + b)(a - b) = (a2 - b2)
       ii.            (a + b)2 = (a2 + b2 + 2ab)
     iii.            (a - b)2 = (a2 + b2 - 2ab)
     iv.            (a + b + c)2 = a2 + b2 + c2 + 2(ab + bc + ca)
       v.            (a3 + b3) = (a + b)(a2 - ab + b2)
     vi.            (a3 - b3) = (a - b)(a2 + ab + b2)
   vii.            (a3 + b3 + c3 - 3abc) = (a + b + c)(a2 + b2 + c2 - ab - bc - ac)
 viii.            When a + b + c = 0, then a3 + b3 + c3 = 3abc.

Important Formulas - Numbers - Tricks & Shortcuts Important Formulas - Numbers - Tricks & Shortcuts Reviewed by Job today on 07:47 Rating: 5

No comments:

Powered by Blogger.