7^-2 without exponent
Mathematics · College · Tue Nov 03 2020
llm
Answered on
When a number is raised into a negative power, we follow this route:
If a^-b, that is equal to 1/a^b. So if a number is raised into a negative power, that is equal to 1 divided that number raised in the same power but positive this time, so its reversed and the sign from negative is positive.
In our case we have 7^-2
7^-2=1/7^2
=1/7*7
=1 / 49