R and P
R O
s, the sequence is one two three four five six, so the next number is seven, so the answer is s
t
t(1) = 1 t(2) = 1 t(n+1) = t(n) + t(n-1) for n = 1, 2, 3, ... That is, the first two terms are 1; after that every term is the sum of the previous two terms.
The Fibonacci sequence starts with 1 and 1. However any sequence in which the first two terms are given and the rest are defined recursively as t(n) = t(n-2) + t(n-1), with n = 3, 4, ... is also known as a Fibonacci sequence. Note the "the" and "a" preceding Fibonacci sequence.
Each term, except the first two, in the Fibonacci sequence is defined in terms of terms that went earlier in the sequence. That is the meaning of "recursive". t(1) = 1 t(2) = 1 t(n+2) = t(n) + t(n+1) for n = 1, 2, 3, ...
what is the next sequence a, d, g, j
These sequence stands for: Ten Twenty Thirty Forty Fifty Sixty Seventy would be next in the sequence, so the answer is 'S'.
dadas
Next two are f s, and then it repeats. These are the first letter of the days of the week in English.
It is a version of the Fibonacci sequence, where each term is the sum of the previous two terms. The sequence is defined by the recursive formula: t(n) = t(n-1) + t(n-2) where t(n) is the nth term Here, t(1) = 2 and t(2) = 3 though for the more general form of the Fibonacci sequence, t(1) = 1 and t(2) = 1.
F
t(1) = 1t(2) = 1t(n) = t(n-2) + t(n-1) for n = 3, 4, 5, ...that is, the first and second terms are 1. After that, each term is the sum of the previous two terms.