Answers

2014-09-15T19:44:07+08:00
Say,  x^{-2} ,
just express it as a denominator
 \frac{1}{ x^{2} }
0
can you discuss to me please.:D
any number or variable that is expressed in a negative exponent will have its positive exponent once it is expressed as a reciprocal of the original number.
please refer to laws of exponents for you to understand further :)
thank you :D