Math, asked by trinanjoy, 5 months ago

Sita calculates the sum of the first n positive integers and finds that the sum is 1278. If she has counted one integer twice, which one is it?

Answers

Answered by jemas564

0

Answer:

DS84302.01

Step-by-step explanation:

If S is the sum of the first n positive integers, what is the value of n ?

(1) S < 20

(2) S^2 > 220

DS84302.01

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