Math, asked by rupalshah1472, 1 year ago

| 1+2+3
.......+ 400 =​

Answers

Answered by Thinkab13
8

Answer:

Apply this formula,

n(n+1)/2

where n= number of terms

As here the number of terms are 400 so your answer will be

400(401)/2=200×401=80200

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