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posted by Help Tuesday, January 8, 2013 at 9:57pm.
Write an equation for nth term in the sequence: -2, 5, -10, 17, -26
t(1)=-2 t(2)=5 t(3)=-10 ... Hint: compare 2,5,10,17,26 and 1,4,9,16,25.... The sign can be achieved by multiply by the factor (-1)^n
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