Answer:
The correct option is 3.
Explanation:
The expression of left side is


![[\because (a^m)/(a^n)=a^(m-n)]](https://img.qammunity.org/2020/formulas/mathematics/middle-school/3xqhwqy0w6z2mf6nqknwcxqwlgj93vihb0.png)
The expression of right side is


![[\because a^m\cdot a^n=a^(m+n)]](https://img.qammunity.org/2020/formulas/mathematics/middle-school/7x4i3l2o4ugxesxx5n0ujk9z8b0bei1j9t.png)

Expression of both sides are written in the scientific notation.
Since
, therefore the expression of left sides is greater that the expression of right sides.

Therefore correct option is 3.