Arithmetic Sequence Flashcards by Heart Flores | Brainscape

Q

Formula for finding the common difference

A

D= a(n) - a(n-1)

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Q

What is a(n)

A

Last term in the sequence

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Q

Formula in finding the n

A

an= a + (n-1)d

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Q

How to find the sum of first n terms

A

Sn= n/2 (2a + (n-1) d )

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