Question 131967
{{{(3ab)^0=1}}}
Any expression to the zero power equals 1. 
You can prove that by using the rules of exponents. 
{{{(3ab)^0=(3ab)^(2-2)}}}
{{{(3ab)^0=(3ab)^2/(3ab)^2)}}}
{{{(3ab)^0=1)}}}