I'm lazy and dont feel like doing math myself. So pls help me! I'm asking this again cuz no one answer it the first time T-T

Dulal asked Jun 14, 2023

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25 votes

I'm lazy and dont feel like doing math myself. So pls help me!

I'm asking this again cuz no one answer it the first time T-T

Dulal asked Jun 14, 2023

by Dulal

3.2k points

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15 votes

Answer:

Explanation:

Well you just plug in 10 as n.. and you get the equation:

$(10(10+1))/(2) \\(10(11))/(2)\\\\(110)/(2)\\\\55$

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