Question

Find the first six terms of the sequence.
a1 = -3, an = 2 • an-1

Options:
a.-6, -12, -24, -48, -96, -192
b. -3, -6, -12, -24, -48, -96
c. 0, 2, -6, -4, -2, 0
d. -3, -6, -4, -2, 0, 2

Answer 1

The first term (a1) is -9.

a1 = -9

Each subsequent term is 4 times the prior term.

a[n] = 4 * a[n-1]

So start with -9 and then multiply it by 4 each time.

Answer:

-9, -36, -144, -576, -2304, -9216

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