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Series

Series

Example 1

Use sigma notation to write the sum

20 + 25 + 30 + 35 + ... + 100.

Example 2

Write the sum

4(0.1) + 4(0.01) + 4(0.001) +...

using summation notation.

Example 3

Use sigma notation to write the series

starting at (a) n = 3, (b) n = 2, (c) n = 1 and (c) n = 0.

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