Let n be a positive integer. If a = (3^2n +4) ^ -1 , what is the remainder when a is divided by 9?
This question doesn't make a ton of sense.
a is clearly less than 1 and thus a divided by any integer m will be 0m + a,
i.e. a itself will be the remainder. Are you sure a isn't supposed to just be 32n + 4?
yes, I'm sure