USING MICROSOFT EXCEL
HOW TO INSERT HEADERS FOOTERS IN EXCEL
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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The following sequence, 1, 2, 3, etc., is an example of a(n) ____ series.
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growth
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date
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linear
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auto fill
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Explanation:
Detailed explanation-1: -Linear sequences of numbers are characterized by the fact that to get from one term to the next we always add the same amount. The amount we add is known as the difference, frequently called the common difference. For example, the sequences: 3, 7, 11, 15, 19, 23, … and 13, 11, 9, 7, 5, 3, 1, …
Detailed explanation-2: -Hence the sum of 1, 2, 3, ⋯, n is n n + 1 2 .
Detailed explanation-3: -Numbers of this form are called triangular numbers, because they can be arranged as an equilateral triangle.
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