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denis-greek [22]
2 years ago
13

Identify next three numbers in this sequence: 2, 8, 4, 16, 12

Mathematics
2 answers:
Tomtit [17]2 years ago
4 0
The next three numbers are 48, 44, 176
satela [25.4K]2 years ago
4 0

Answer:

2, 8, 4, 16, 12, 30, 26, 50

Step-by-step explanation:

The first is determinate the different (d) between each consecutive value (a_n - a_{n-1}).

8 - 2 = 6\\4 - 8 = -4\\16 - 4 = 12\\12 - 16 = -4\\

How you can see when the position of the number in the sequence is odd you have to sum a number 6x and when the position of the number in the sequence is a even number you have to substract -4.

Why 6x? If you see the first two odd position numbers in the sequence are multiples of 6, then we made the deduction that each time that you sum a number this is a multiply of 6 and -4 is constant for each position even number.

Then for each odd position number in the sequence it's representation is of the form:

a_{n-1} + 6x = a_n

Where a_{n-1} is the number of before, x the odd position of the number in the sequence and a_n is the current value of a_n

So the rest of the sequence is of the next form:

12 + 6(3) = 30

30 -4 = 26

26 + 6(4) = 50

So the final answer is \{30, 26, 50\}

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