The first term of an arithmetic progression is sin 2 x and the second term is 1.

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The first term of an arithmetic progression is sin²x and the second term is 1.
a. Write down an expression, in terms of sinx, for the fifth term of this progression.
b. Show that the sum of the first ten terms of this progression is 10 + 35 cos²x.

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Cambridge International AS And A Level Mathematics Pure Mathematics 1 Coursebook

ISBN: 9781108407144

1st Edition

Authors: Sue Pemberton, Julian Gilbey

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The first term of an arithmetic progression is sin 2 x and the second term is 1.

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a Let the common difference of the arithmetic progression be d Then the first term is sin2 x and ...View the full answer

Cambridge International AS And A Level Mathematics Pure Mathematics 1 Coursebook

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