how do you do nth term | Mathematics | Page 1

languid gull Jun 2, 2024, 4:50 PM

#

I remember doing it I just forgot ahha …

jolly domeBOT Jun 2, 2024, 4:50 PM

#

scarlet shore Jun 2, 2024, 4:52 PM

#

whats the common difference between the terms?

#

@languid gull

languid gull Jun 2, 2024, 5:20 PM

#

4

#

@scarlet shore

coral whale Jun 2, 2024, 5:43 PM

#

I think one way you can do this if you want to think about it more systematically

#

since it's an arithmetic sequence, you can think of terms as having the form nx+b

#

so the first two terms are 1 and 5, so you can say x+b = 1 and 2x+b = 5

#

if you solve the system, you get x=4, b = -3

#

So from that you know that the sequence is given by 4n-3

#

@languid gull lmk if that makes sense

languid gull Jun 3, 2024, 5:36 AM

#

I think I get it

#how do you do nth term