The sum of the first n consecutive natural numbers is a number.

negative

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square

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triangular

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cubic

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Solution

The correct option is C triangular
The sum of the first n consecutive natural numbers is a triangular number.
Example:-
1 = 1
1+2 = 3
1+2+3 = 6
1+2+3+4 = 10

Here, 1,3,6,10 are triangular numbers.

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