# Fifth Term of the Series

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What is the fifth term of the series an = n + an-1' if a0 = -3.

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#### Solution Preview

a(n) = n + a(n-1)

=> a(n) = n + (n-1) + a(n-2)

so on. Hence,

=> a(n) = n + (n-1) + (n-2) + ...

#### Solution Summary

The fifth term of a series is found.

$2.49