Question

Find the 4th term if the sequend in which a1 = 2 and an+1 = -4an + 2.

Answer 1

so than you know this formula a_(n+1) = -4an +2 and you know that a_1 = 2so how you get the a_2 ?

Answer 2

ok. a little help you know that a_1 = 2 so than you can writing for a_2 :

a_2 = -4a_1 +2 = -4*2 +2 = -8 +2 = -6

right ?

Answer 3

can you calculi now using these above wrote the a_3 = ?

Answer 4

a_3 = -4*a_2 +2 = ?

Answer 5

please collaborate

Answer 6

do you understand it ?

Answer 7

Yes

Answer 8

and can you find now the 4th term too ?