The first term of a geometric series is 120. The sum to infinity of the series is 480.
Show that the common ratio, rrr, is 34\displaystyle \frac{3}{4}43.
Find, to 2 decimal places, the difference between the 5th and 6th terms.
Calculate the sum of the first 7 terms.
The sum of the first n n\,n terms of the series is greater than 300. Calculate the smallest possible value of nnn.
Practise Edexcel A Level Old Maths Sequences and Series with exam-style questions for A Level Old Maths. 10 questions, matched to the Edexcel A Level Old Maths (9371) specification and written in Unit exams C1, C2, C3 and C4 plus two applied units (e.g. S1 and M1) style. Every question includes a full worked solution and mark scheme, so you can see where marks are awarded rather than just whether you got the answer right.
