If the first three terms of an arithmetic sequence are how do you find the nth term of the sequence?? i figured the bottom to be

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- Nov 21st 2009, 03:33 PMIntsecxtanxarithmetic sequence help
If the first three terms of an arithmetic sequence are how do you find the nth term of the sequence?? i figured the bottom to be

- Nov 21st 2009, 04:10 PMmosta86
assume U0=4/5 U1=38/35 U2=336/245

Un=U0+nr

r=U1-U0=U2-U1= 10/35

=> Un= 4/5 + n ( 10/35 ) general term. - Nov 21st 2009, 04:46 PMSoroban
Hello, Intsecxtanx!

Quote:

The first three terms of an arithmetic sequence are: .

How do you find the term of the sequence?

You should know that the term is: .

. . where: . = first term, . = common difference.

The first term is: .

The common difference is: .

Got it?