Linear (Arithmetic) Sequences (Leaving Cert Mathematics): Quizzes

Sequence with constant diff. between terms

$d$

The first term

$T_n = a + (n-1)d$

$2$

$d = T_n - T_{n-1}$

$13$

The term at position $n$

A natural number

Show $T_n - T_{n-1}$ is constant

No, $T_n - T_{n-1} = 2n+2$ (not constant)

$a + d$