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jekas [21]
3 years ago
8

The whole number m is a term in an arithmetic sequence with common difference 2. Show that the sum of the term m and the next tw

o terms is a multiple of 3, no matter what the value of m. ​
Mathematics
1 answer:
Igoryamba3 years ago
4 0

Answer:

S

ThenSn=n(a1+an)2Sn=n(a1 + an)2 , where nn is the number of terms, a1a1 is the first term and anan is the last term. The sum of the first nn terms of an arithmetic sequence is called an arithmetic series .

Step-by-step explanation:

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