An arithmetic progression has first term 2 and common difference 7. a. Write down a formula for

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An arithmetic progression has first term −2 and common difference 7.

a. Write down a formula for the nth term of the progression. Which term of the progression equals 110?

b. Write down a formula for the sum of the first n terms of the progression. How many terms of the progression are required to give a sum equal to 2050?

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Cambridge IGCSE And O Level Additional Mathematics

ISBN: 9781510421646

1st Edition

Authors: Val Hanrahan, Jeanette Powell

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Question Posted: Sep 03, 2021 01:47 AM

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An arithmetic progression has first term 2 and common difference 7. a. Write down a formula for

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a The formula for the nth term of the progression is an 2 7n The term of th...View the full answer

Cambridge IGCSE And O Level Additional Mathematics

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