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Sum of a isomorphic sequence (by first and last terms, and number of the terms)

ÀÛ¼ºÀÚ Uploader : amuna ÀÛ¼ºÀÏ Upload Date: 2019-02-15º¯°æÀÏ Update Date: 2019-02-25Á¶È¸¼ö View : 271

If there are n terms between a and b in the isomorphic sequence whose first term is a and last term b, then the sum S of the isomorphic sequences can be obtained as follows.

S = (n + 2) * (a + b) / 2

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S = (n+2)*(a+b)/2
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