Negative exponent rule  Exponents
Negative exponent rule
Don’t be scared by the negative sign! Just flip the number over to get rid of the negative sign. In other words, a number with a negative exponent should be put to the denominator, and vice versa.
Lessons
Notes:
${a^{n}} = \frac{1}{a^n} , a \neq 0$$and \frac{1}{a^{n}} = {a^n} , a \neq 0$

2.
Simplify the following: