Higher November 2018 Paper 5 Q16
16 Here is a sequence.
\(5 \qquad 5\sqrt{3} \qquad 15 \qquad 15\sqrt{3}\)
(a) Work out the next term. [1]
(b) Find the \(n\)th term. [3]
| Answer | Marks | Part marks and guidance | |
|---|---|---|---|
| 45 | 1 | ||
| Answer | Marks | Part marks and guidance | |
|---|---|---|---|
| \(5 \times \sqrt{3}^{\,(n-1)}\) oe | 3 | M2 for expression of correct form with two correct elements e.g. \(5 \times \left(\sqrt{3}\right)^n\) or M1 for expression of correct form with one correct element e.g. \(3 \times \left(\sqrt{3}\right)^n\) | |