Question

Find the nth term formula for the following sequence:
144, 121, 100, 81, 64...

Answer 1

Step-by-step explanation:

144=12²;121=11²;100=10²;81=9²;64=8². Hence the next no. will be 7²; then 6² and so on.

Answer 2

Answer:

167-23n

Step-by-step explanation:

a=144

d= 121-144

d= -23

aₙ= a+(n-1)d

aₙ= 144+(n-1) -23

aₙ=144-23n+23

aₙ=167-23n

Here, 'n' is the number of terms.