Thread: Number of Terms in an Arithmetic Sequence

1. Number of Terms in an Arithmetic Sequence

What is the formula for finding the amount of terms in an arithmetic sequence? I know the first term, last term and common difference.

2. Originally Posted by Viral
What is the formula for finding the amount of terms in an arithmetic sequence? I know the first term, last term and common difference.
HI

It will be $T_n=a+(n-1)d$

Where $T_n$ would be your last term , a and d are respectively ur first term and common difference , then solving for n would give you the no of tems.