The nth term for that arithmetic progression is 4n-1. Therefore the next term (the fifth) in the sequence would be (4x5)-1 = 19.
The nth term in this sequence is 4n + 3.
2n + 1
tn = 15 - 4n (n = 1,2,3, ... )
1...2....3....43...7...11..157 - 3 = 411 - 7 = 415 - 11 = 4(the start of the nth term is 4n)4 x 1 = 4(but the first term is 3, so...)4 -1 = 3nth term = 4n - 1
The nth term is 18 -3n and so the next term will be 3
The nth term in this sequence is 4n + 3.
If you mean -1 3 7 11 15 then the nth term is 4n-5 and so the next term will be 19
If you mean: 15 11 7 3 then the nth term is 19-4n
It is: nth term = 5-4n and so the next term will be -19
The nth term is 4n-1 and so the next term will be 19
The sequence 3, 7, 11, 15 is an arithmetic sequence where each term increases by 4. The first term (a) is 3, and the common difference (d) is 4. The nth term can be expressed using the formula: ( a_n = a + (n - 1)d ). Substituting the values, the nth term is ( a_n = 3 + (n - 1) \cdot 4 = 4n - 1 ).
2n + 1
tn = 15 - 4n (n = 1,2,3, ... )
Double it minus the previous number.
1...2....3....43...7...11..157 - 3 = 411 - 7 = 415 - 11 = 4(the start of the nth term is 4n)4 x 1 = 4(but the first term is 3, so...)4 -1 = 3nth term = 4n - 1
The nth term is 18 -3n and so the next term will be 3
It is 4n -1 and so the next term will be 23