3; 0; - 3; - 6; - 9; \dots

${3;\, 0;\, -3;\, -6;\, -9;\, \ldots}$

3; 0; - 3; - 6; - 9; \dots

$3;\, 0;\, -3;\, -6;\, -9;\, \ldots$

\dots

$\ldots$

\dots

$\ldots$

1

Lisa