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Naily [24]
3 years ago
15

Which number should come next in the series? 1 - 1 - 2 - 3 - 5 - 8 - 13

Mathematics
1 answer:
Darya [45]3 years ago
8 0
This is part of the Fibonacci sequence. The next number is 21. Look at how much each number increases and the number before it.

1+1=2 (the number after 1 and 1)
1+2=3 (the number after 1 and 2)
2+3=5 (the number after 2 and 3)

So to solve we add 13+8=21
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*Ps - IO is not an existing term and stands for inverse operation. In this case, because when we take to 2 to the right side of the equation (the 2 is a power) it'll have to turn into a square root (because exponents and roots are inverse operations)



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