Posted by **Help** on Tuesday, January 8, 2013 at 9:57pm.

Write an equation for nth term in the sequence: -2, 5, -10, 17, -26

- FUNCTIONS 11 -
**MathMate**, Tuesday, January 8, 2013 at 10:11pm
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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