The first term of an arithmetic progression is cos 2 x and the second term is 1.
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The first term of an arithmetic progression is cos2 x and the second term is 1.
a. Write down an expression, in terms of cos x, for the seventh term of this progression.
b. Show that the sum of the first twenty terms of this progression is 20 + 170 sin2 x.
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a The common difference of an arithmetic progression is the difference between ...View the full answer
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Related Book For
Cambridge IGCSE And O Level Additional Mathematics Coursebook
ISBN: 9781108411660
2nd Edition
Authors: Sue Pemberton
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