20-9x=n
The nth term is equal to 4n.
Un = 29 - 9n
tn = 34 - 9n where n = 1,2,3,...
The Nth term in the series is [ 2N ] .
Clearly, if you omit the sign, the nth. term will be 4n. The alternating sign can easily be expressed as a power of (-1), so in summary, the nth. term is (-1)n4n.
It is 5n-4 and so the next term will be 21
5n+1
The nth term is equal to 4n.
tn = 34 - 9n where n = 1,2,3,...
Un = 29 - 9n
The Nth term in the series is [ 2N ] .
The nth term is 9n-2
The nth term is 3n+7 and so the next number will be 22
The nth term is: 3n+1 and so the next number will be 16
(n2+n+2) / 2, starting with n=0.
The nth term is 22n and so the next number will be 5*22 = 110
Clearly, if you omit the sign, the nth. term will be 4n. The alternating sign can easily be expressed as a power of (-1), so in summary, the nth. term is (-1)n4n.