justhonda1 justhonda1

27-05-2024
Mathematics

Answered

The nth term is given as n(n 1)/2 prove that the 5th and 6th term sum up a square number

Verified Answer :

HuzaifaFaheem HuzaifaFaheem

27-05-2024

Answer:

the square number = 36

Step-by-step explanation:

nth term = n(n + 1) / 2

let's begin the series with n = 1

series would be written as:

1, 3, 6, 10, 15, 21, 28, ....

at 5th and 6th terms are:

15 and 21 which add up to make a square number i.e. 36

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