The seventh term of an arithmetic sequence is -2 and the twelfth term of the sequence is 18.
a.
Find the first term of the sequence.
[2]
b.
Find the common difference.
[2]
Markscheme
3.3.4 Sequences and series (A-level only) Questions
63 exam-style questions on CCEA A Level Maths 3.3.4 Sequences and series (A-level only). Each one has a worked solution and a mark scheme showing where the marks go.