Geometric sequences
Grade 11
What this lesson shows
A geometric sequence starts at 2, with a ratio of 3. Find term 3. The word "ratio" is the clue to what makes this different.
Try it yourself
Real questions from this lesson's worksheets — answers below each one.
- Sum of the first 7 terms: first term 3, common difference 2
Show answer
63 - Geometric sequence: 1, 2, 4, … What is the ratio?
Show answer
2 - Geometric sequence: first term 1, ratio 2. Find term 3
Show answer
4 - Geometric sequence: 1, 3, 9, … What is the ratio?
Show answer
3
Practise this every day
Eduyro gives your child a short daily worksheet on exactly this skill, and moves them on only once they have it. Watch the lesson, then build the fluency.
Start free