Geometric Sequences (Grade 12 NSC Matric Mathematics): Quizzes

Each term = previous term × constant ratio

Divide any term by the term before it

$T_n = ar^{n-1}$

Because the first term has power 0: $T_1=a×r^0$

Check if all consecutive ratios are equal

$48$

$x = ±\sqrt{ab}$

Both create valid geometric sequences

Geometric multiplies, arithmetic adds

Yes, $r = 3$ (all ratios equal)