The first three terms of a geometric sequence are given by 8 x, 2x, and x
Question:
The first three terms of a geometric sequence are given by 8 − x, 2x, and x2 respectively where x > 0.
a. Show that x3 − 4x2 = 0.
b. Find the value of the 20th term.
c. State, with a reason, whether 4096 is a term in the sequence.
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a x 2x 2x x 8 x 4...View the full answer
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Related Book For 
Pearson Edexcel A Level Mathematics Pure Mathematics Year 2
ISBN: 9781292183404
1st Edition
Authors: Greg Attwood, Jack Barraclough, Ian Bettison, David Goldberg, Alistair Macpherson, Joe Petran
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