Monday 13 October 2014

EXPONENTS 2


Simplify 5
            125-2/3

Solution

5
  125-2/3

=  5 x 1
         125-2/3

=  5 x 1252/3        [Since 1/a-n = an]

=  5 x (1251/3)2        [Since 1251/3 = cube root of 125 = 5]

=  5 x (5)2        

=  5 x 25

= 125        
         
Hence   5        = 125
            125-2/3

TRY THIS…………………………

simplify 5

             27-2/3

No comments:

Post a Comment