mathematic simplification formulas (EXAM)

 

BODMAS stands for:

B: Brackets

O: Order 

D: Division

M: Multiplication

A: Addition

S: Subtraction

mathematic simplification formulas for competitive exam

1.    a^m  X  aⁿ  =   a^m+n

2.    a^m/aⁿ      =  a^m-n

3.    (a^m)ⁿ       =  a^mn

4.    A⁰                  =  1

5.    (a/b)ⁿ         =  aⁿ/bⁿ

6.    √a            =  a^1/2

7.    (√a)²         =  a    

8.     a² - b²       =  (a+b)(a-b)    example ( ഉദാഹരണ ചോദ്യങ്ങൾ )

9.     (a+b)²         =  a²+2ab+b²

10.  {(a+b)² + (a-b)² /(a²+b²)}  = 2

11.  { (a+b)² - (a-b)² /ab}   =  4

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