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Find the first six terms of the sequence.

a1 = -9, an = 4 • an-1

Answer Choices:
A) -9, -36, -144, -576, -2304, -9216
B) -9, -36, -32, -28, -24, -20
C) -36, -144, -576, -2304, -9216, -36,864
D) 0, 4, -36, -32, -28, -24

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Nyctalus Nyctalus · Answer 1 · 2018-08-01T04:29:57+02:00

The formula gives an = 4* an-1

we can find every next term using previous term

when we place n=1

a1 = -9 let us find a2

a2= 4* a1 = 4*(-9 )= -36

a3 = 4* a2 = 4* (-36)=-144

a4= 4*a3= 4*-144=-576

a5= 4*a4 = 4*-576= -2304

a6 = 4*a5 = -9216

a7= 4*a6= -36864

So option A is the correct answer

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