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Q: Sequence 2 4 16 64

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This sequence is called the doubling sequence.

1 - 2 - 4 - 8 - 16 - 32 - 64 the sequence doubles

-64

No.

512 / 2 = 256 256 / 2 = 128 128 / 2 = 64 64 / 2 = 32 32 / 2 = 16 16 / 2 = 8 8 / 2 = 4 4 / 2 = 2 2 / 2 = 1

-2

24. It should be 32 which is double of 16

They are square numbers

it continues: 8, 4, 2, 1, 1/2, 1/4, 1/8, 1/16, ...

neither

You are multiplying each number in the sequence by -2. Therefore, the next number in the sequence after 32 is -64.

4 16 36 I'd say 64 100 144 Why ? 4 16 36... if you take the square root you get 2 4 6 so you can reason the sequence is 2 4 6 8 10 12 14... If you square that again you get 4 16 36 64 100 144 196 :-)

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