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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,..

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1 Answers

Harshit Singh
askIITians Faculty 5963 Points
3 years 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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