2n+3. If 5 is the first term, then it is 2n + 3 (2×1 = 2 + 3 = 5 and 2×2 + 3 = 7)
7 - 4n where n denotes the nth term and n starting with 0
Un = (-1)n*(2n - 1)
(2n-1)(-1)n
fu
The answer depends on the value of B.
The nth term of the sequence is 2n + 1.
Un = 4n - 9
The "N"th term is -7. You can deduce this from: 19 - 7 = 12 - 7 = 5 - 7 = -2 - 7 = -9
7 - 4n where n denotes the nth term and n starting with 0
For an A.P., nth term of the sequence is given by 5 + (n-1)d, where d is the common difference.
I suspect that the first term should be "negative 3", ie the sequence is -3, 1, 5, 9, 13, 17, ... The nth term is 4n - 7
The nth term is 7n-5 and so the 6th term will be 37
2n + 1
It is: nth term = 7n-9
2n+5
The nth term is: 2n+7 and so the next number will be 19
Un = (-1)n*(2n - 1)