Grade 12 Mathematics: Sequences and Series

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

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

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

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

$S_n = 2(a+l)$

$S_n = n(a+l)$

$S_n = 2n(2a+(n-1)d)$

$S_n = n(2a+(n-1)d)$ (correct)

Each term is found by adding a constant to the preceding term.

Each term is found by multiplying the preceding term by a fixed number. (correct)

Each term is obtained by subtracting a constant from the preceding term.

Each term is obtained by dividing the preceding term by a fixed number.

<p>$T_n = ar^{n-1}$ (D)</p> Signup and view all the answers

<p>$S_n = a(1-r^n)/(1-r)$ (B)</p> Signup and view all the answers

<p>$|r| &lt; 1$ (B)</p> Signup and view all the answers