Write an expression for the apparent nth term of the sequence. (assume that n

N

nyzainab92

New member
begins with 1.)? 1.) 2,-4, 6, -8, 10, ... (i need a equation that can get 1 to equal to 2 then 2 to equal to -4 and on an on.)

Example:
1,4,7,10,13,...
= 3n-2
 
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