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monitta
4 years ago
7

EASY geometry!! Please help I’ve been stuck on this for too long and it’s due tomorrow :(

Mathematics
1 answer:
satela [25.4K]4 years ago
7 0

Answer:

{n*(n+1) }    /2

Step-by-step explanation:

The clearest pattern is that the last digit is multiplied by the number after it and then the multiplication is divided by 2.

1 is multiplied by 2, then divided by 2.

2 is multiplied by 3, then divided by 2.

3 is multiplied by 4, then divided by 2.

So, the pattern is:

{n*(n+1) }/2.

Hope this helped!

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