The sum of the digits in the number 56 is 11. (5+6=11) a) Show that the sum of the digits of the integers from 15 to 18 is 30. b) Find the sum of the digits of the integers from 1 to 100

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Sequence and Series

A sequence is defined as a collection of things. Series is defined to sum the things one by one in the sequence.  It was invented by German mathematician Carl Friedrich Gauss.