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find the nth term of the sequence 1,-4, 9, -16, 25,..

find the nth term of the sequence 1,-4, 9, -16, 25,..

Grade:

1 Answers

Harshit Singh
askIITians Faculty 5965 Points
11 months ago
Dear Student

it can be observed that the numbers are square and the square of even numbers is negative
so nth term = ( –1)(n+1)n2

Thanks

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