Find the first six terms of the sequence.
a1 = -1, an = 2 • an-1 (7 points)
Select one:
a. -2, -4, -8, -16, -32, -64
b. -1, -2, -4, -8, -16, -32
c. -1, -2, 0, 2, 4, 6
d. 0, 2, -2, 0, 2, 4
It's b. -1,-2,-4,-8,-16,-32 because [tex]a_n=2a_{n-1} \mbox{ where } a_1=-1.\\
So\\
a_2=2a_1=-2\\
a_3=2a_2=-4\\
a_4=2a_3=-8\\
a_5=2a_4=-16\\
a_6=2a_5=-32.[/tex]
