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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