Use the Negative Power Rule to simplify 10^−12.

By using the Negative Power Rule, we can rewrite 10^−12 as 1 / 10^12, because any number to the power of -n is equal to 1 divided by that number to the power of n. So, simplifying further, we have 1 / 10^12 = 1 / 1,000,000,000,000.