los1023 los1023

09-05-2017
Mathematics

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

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mreijepatmat mreijepatmat

14-05-2017

a₁=1====> 1²

a₂=-4===>-2²

a₃=9====>3²

a₄ =-16==>-4²

a(n) = -(-1)ⁿ (n²)

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