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

User Shifenis
by
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1 Answer

3 votes
a₁=1====> 1²

a₂=-4===>-2²

a₃=9====>3²

a₄ =-16==>-4²

a(n) = -(-1)ⁿ (n²)
User Luis Ferrao
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