Slides in this set
Rule One Negative Indices
· a to the power of n is equal to 1
over a to the power of n
·The minus sign creates what is
known as a reciprocal.
·Example: 2 to the power of -2 =
¼ or 2 to the power of -3
Rule two: Fractional Indices
·a to the power of 1 over n is equal to
the nth root of a
·For example: 8 to the power of is
equal to 2 because 2 is the cubed root of
·16 to the power of a half = 16 which
Harder fractional indices
·These are a littler bit harder.
But can easily be solved by
doing one step at a time.
·For example: 27 can be split
into (27 )² which can also be
written as (³ 27)².
³ 27 = 3
3² = 9 and therefore
27 = 9…read more