Paper 1 · Sequences and Series
⏱ Tested in 2 exam questions since 2022
Lesson 5 of 15
Sequences and Series 2: Arithmetic Sequences 2
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- Prove three terms are arithmetic by showing T₃ − T₂ = T₂ − T₁
- Prove a whole sequence is arithmetic by showing Tₙ₊₁ − Tₙ is constant
- Simplify log terms like Tₙ = 5 ln(bⁿ) with the rules of logs before proving
- Find x when three expressions in x form an arithmetic sequence
Most recent exam questions
- 2024 P1 Q5(a)
- 2022 P1 Q4(b)(i)
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