Higher November 2022 Unit 2 Q15
15. Write down an irrational number whose value is between 9 and 10.
Write your answer in the box below. [1]
Irrational number is: ☐
| Scheme | Marks | Comments |
|---|---|---|
| An irrational number which correctly evaluates to between 9 and 10, for example: \(\sqrt{90},\ \pi^2,\ \sqrt{5} + 7,\ \pi + 6,\ \sqrt{107} - 1,\ \sqrt[3]{823},\ 3\pi\) | B1 | Number in the box takes precedence, otherwise the answer must be clearly identified. Allow B1 if the answer in the box is not irrational, but has clearly come from evaluating an irrational number e.g. 9·49(…), from evaluating \(\sqrt{90}\). |