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​Q23: Answers – Paper 2 – November 2017
Mark Scheme
Working
S is a geometric sequence.
 
a) Given that
are the first 3 terms of S, find the value of x.
You must show all your working.

​b) Show that the 5th term of S is
Question
23)
​S is a geometric sequence.
 
a) Given that
are the first 3 terms of S, find the value of x.
You must show all your working.
[3 marks]

​b) Show that the 5th term of S is
[2 marks]