Question

determining nth term for AP 4^3,8^3,12^3

Answer 1

(4n)^3 !!

Answer 2

how did you get it ?

Answer 3

is there any formula ?

Answer 4

no.. see the patern, its a multiple of 4

first term is 4
second term is 8
third term is 12.. so its definitely the nth multiple of 4,

then the whole thing is raised to the power 3, which is a constant.. for all terms..

thus you get (4n)^3.. sorry for the delay!!