Home > Subjects > Mathematics > Level 2 > 2.7 Sequences (AS90290) > Key tips
- Subject: Mathematics
- AS: AS90290
- Level: 2
- Credits: 2
- External
Mathematics 2.7 Solve straightforward problems involving arithmetic and geometric sequences
Key tips
- List the first few terms of the sequence to ensure that you use the correct approach.
- Read the questions carefully and solve the problems in context.
- Check the reasonableness of your answer in the context of the question.
- Attempt all questions, as evidence from higher-level questions may be used as replacement evidence when awarding achievement.
- Look for key words. APs are indicated by extra, less, shorter, longer, etc. GPs are indicated by times, percentage increase, ratio, etc.
- Use brackets to ensure the correct order of operations.
- To gain achievement with excellence, you may be expected to solve quadratic equations. This could involve use of the quadratic formula.
