Series (Grade 12 NSC Matric Mathematics): Flashcards

Sum of terms in a sequence

Sum of first $n$ terms of a sequence

Sum of specific, limited number of terms

$S_\infty$

$|r| < 1$

Summation

$i$ (variable that changes)

$n - m + 1$

$S_n = \frac{n}{2}(2a + (n-1)d)$

$S_\infty = \frac{a}{1-r}$ where $|r| < 1$