Higher November 2020 Paper 5 Q11
11
(a) Work out.
\(16^{-\frac{1}{2}}\) [2]
(b) Simplify.
\(\sqrt{6} \times \sqrt{3}\) [2]
| Answer | Marks | Part marks and guidance | |
|---|---|---|---|
| \(\frac{1}{4}\) or 0.25 | 2 | B1 for 4 in answer or answer \(\frac{1}{n}\) (\(n\) is an integer > 1) or answer – 4 | For B1 accept decimal equiv provided \(\frac{1}{n}\) seen first |
| Answer | Marks | Part marks and guidance | |
|---|---|---|---|
| \(3\sqrt{2}\) final answer | 2 | B1 for \(\sqrt{18}\) or [\(\sqrt{6} =\)] \(\sqrt{3} \times \sqrt{2}\) | Accept eg \(3 \times \sqrt{2}\) as final answer for 2 marks |